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Dates
1911
1921
circa 1911-1921
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.498.1 a-e
Description
Coolidge tube (a), shaped like a glass retort, with a bulb at one end; a piece broken off (b) has a screw thread at one end; the tube rests on a wooden mount (e); two wooden half-circles (c,d) affix the tube firmly to the mount.
  1 image  
Accession Number
1969.498.1 a-e
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
Coolidge tube (a), shaped like a glass retort, with a bulb at one end; a piece broken off (b) has a screw thread at one end; the tube rests on a wooden mount (e); two wooden half-circles (c,d) affix the tube firmly to the mount.
Number Of Parts
5
Part Names
a - tube - Size: Length 37.0 cm x Diam. 17.8 cm
b - broken-off tube - Size: Length 21.0 cm x Diam. 2.9 cm
c - half-circle - Size: Length 10.0 cm x Depth 4.0 cm
d - half-circle - Size: Length 10.0 cm x Depth 4.0 cm
e - mount - Size: Length 18.0 cm x Width 15.0 cm x Depth 18.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
General Electric Co. Ltd.
Site Made (City)
Toronto
Site Made (State)
Ontario
Site Made (Country)
Canada
Dates
1911
1921
circa 1911-1921
Date Remarks
Patent dates given on metal plate on tube.
Material
metal: silver
glass: clear; translucent violet
wood: brown
Inscriptions
On metal plate: "PATENTED // 1911, 1912, 1914, 1915, 1916 // 1917, 1918, 1919, 1920, 1921 // This tube is not licensed // to be re-exhausted or // repaired nor is the // metal herein contained // licensed to be used // except in this particular // tube // CANADIAN GEN. ELEC. CO. LTD. // TORONTO, CANADA"; inside a circle: the centre has "CGE" with "COOLIDGE // TUBE" around the outside; below that is "125".
Permanent Location
Storage Room 0010
0010-F4-8
Condition Remarks
One end of tube broken off; #2: glass is broken; metal is oxidized
Copy Type
Original
Reference Types
Photo
Images
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dental x-ray tube

https://mhc.andornot.com/en/permalink/artifact430
Dates
1920
1940
circa 1920-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004014
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube; within the glass tube is a heavy metal rod and a copper section; the top of the tube has a piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming out of it.
  2 images  
Accession Number
995004014
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- tube
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube; within the glass tube is a heavy metal rod and a copper section; the top of the tube has a piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming out of it.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Dunlee Corporation
Site Made (City)
Bellwood
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1920
1940
circa 1920-1940
Material
metal: dark grey; brown
plastic (or laminated fabric?): brown; black
glass: clear
cork: beige
Inscriptions
Label on outside tube reads, "Dunlee X-Ray Tube Type 042 Focus T MM Anode No. 12204"
Permanent Location
Storage Room 0010
0010-F4-11
Dimension Notes
Length: 21.0 cm. x Width: 6.5 cm. x Depth: 6.2 cm.
Condition Remarks
The tube was dusty and dirty; the outer coverings of the two wires leading from the inner tube are cracked
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.; Bernie Ziomkiewicz
Research Facts
Likely used as a dental x-ray tube due to its being smaller than the average x-ray tube
Images
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diagnostic tube

https://mhc.andornot.com/en/permalink/artifact460
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004044
Description
Diagnostic tube which consists of a cylindrical black plastic tube with a funnel-shaped attachment at the top and a metal screw attachment (like a light bulb) at one end and a ridged metal attachment made up of 15 pieces of flat metal with six holes stamped into each of them at the other end (remov…
  1 image  
Accession Number
995004044
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Diagnostic tube which consists of a cylindrical black plastic tube with a funnel-shaped attachment at the top and a metal screw attachment (like a light bulb) at one end and a ridged metal attachment made up of 15 pieces of flat metal with six holes stamped into each of them at the other end (removable); the funnel-shaped opening shows an inner glass tube (broken) with cylindrical metal pieces within.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Dates
1930
1940
circa 1930-1940
Material
metal: black; silver
plastic
glass
Inscriptions
Label at one end reads, "Patented 1590971 2132174"
Permanent Location
Storage Room 0010
0010-F4-10
Dimension Notes
Length: 40.0 cm. x Width: 16.0 cm. x Depth: 14.0 cm.
Condition Remarks
Outer tube was dirty and dusty; inner glass tube has been broken and many pieces are loose inside
Copy Type
Original
Reference Types
Person
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz
Research Facts
Diagnostic tube for taking pictures; Coolidge type tube for generating x-rays; the metal disks at one end are for air-cooling the tube; a clip is attached to these which is for a high voltage lead; the light-bulb-like end is the filament contact
Images
Less detail
Dates
1910
1930
circa 1910-1930
Collection
Dr. Frank Mellow Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
006030026 a-b
Description
Fluoroscope X-ray screen; funnel shaped empty box (a) with a viewer at one end and screen (b) at the other end; there is a handle under the box; the screen held on with brass hooks is at the larger end; the shape tapers from the screen end towards the viewer end.
Accession Number
006030026 a-b
Collection
Dr. Frank Mellow Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Fluoroscopy -- instrumentation
Electrostatics
Description
Fluoroscope X-ray screen; funnel shaped empty box (a) with a viewer at one end and screen (b) at the other end; there is a handle under the box; the screen held on with brass hooks is at the larger end; the shape tapers from the screen end towards the viewer end.
Number Of Parts
2
Part Names
a - box - Size: Length 26.7 cm x Width 22.4 x Depth 20.1 cm
b - screen - Size: Length 26.7 cm x Width 22.4 x Depth 1.2 cm
Provenance
Purchased by Dr. Frank Mellow and used in his home office in Uxbridge, Ontario; the Dr's main practice was on first floor; this was on the second floor where radiotherapy, massage, surgical procedures were performed with it; it was last used therapeutically in 1940 by Dr. Mellow.
Dates
1910
1930
circa 1910-1930
Date Remarks
Date based on its association with the other 006030 items
Material
wood: black
leather: black
fabric: black, green
artificial fur: dark brown, reddish orange
metal: yellow
Permanent Location
Storage Room 0007
0007-F1-1
Temporary Location
On display "Doctor's Treatment Room c1930" at Museum of Health Care 20 Feb 2016.
Condition Remarks
The brass fasteners are beginning to wear; the wood and cotton are in good shape, the velvet is showing signs of wear on the edges and on the corners; the fur is matted.
Copy Type
Original
Reference Types
Book
Other
Reference Comments
Associated with 006030001; electrostatic generating machine; and 006030010; X-ray tube; "Static Electricity and the uses of the Roentgen Ray", W.B. Snow, 1903, pp. 157-289; "Electricity in Medicine", G. W. Jacoby & J.R. Jacoby, 1919, p. 263.
Research Facts
Used in conjunction with an X-ray tube and an electrostatic generating machine; it was used as imaging equipment for diagnosis; used to reveal the insides of patients bodies; especial good at showing the bones; the inner side of the screen is covered in crystals which fluoresce when exposed to X-rays; see file for more.
Exhibit History
On display in Museum (North Gallery Room 1013): "Electricity and the Invisible Ray," Oct. 2006 20 Feb 2016.
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hand-held fluoroscope

https://mhc.andornot.com/en/permalink/artifact417
Dates
1900
1920
circa 1900-1920
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004001 a-b
Description
Hand-held fluoroscope consisting of a) the fluoroscope X-ray screen which is a funnelshaped box (cloth-covered wood) with a screen made of glass and plastic (?) at the wide end and a fake fur-covered viewing section at the narrow end; (b) a removable wooden handle which attaches to a metal hardware…
  5 images  
Accession Number
995004001 a-b
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Fluoroscopy -- instrumentation
Description
Hand-held fluoroscope consisting of a) the fluoroscope X-ray screen which is a funnelshaped box (cloth-covered wood) with a screen made of glass and plastic (?) at the wide end and a fake fur-covered viewing section at the narrow end; (b) a removable wooden handle which attaches to a metal hardware attachment on the bottom of the fluoroscope.
Number Of Parts
2
Part Names
a - fluoroscope - Size: Length 32.0 cm. x Width 24.0 cm. x Depth 24.0 cm.
b - fluoroscope handle - Size: Length 13.0 cm. x Width 3.2 cm.
Provenance
Queen's University School of X-Ray.
Maker
Patterson
Site Made (Country)
United States of America
Dates
1900
1920
circa 1900-1920
Material
wood: black (paint)
metal: silver
glass: clear
plastic: clear
fabric: brown
Permanent Location
Storage Room 0007
0007-F1-1
Temporary Location
On exhibit “The Century: Medical Innovations of the 1800s” at Museum of Health Care, 25 June 2017.
Condition Remarks
Fluoroscope was very dusty; the wooden handle which was intended to screw on and off does not stay on; the "fake fur" around the eyepiece is deteriorating and there are "bald" patches; (2) the fake fur and leather appear stable and have suffered no further damage; the paint on the wooden frame is worn and scratched, and the paint in the top proper left corner is completely worn; the fluoroscope was dusty; the glass/plastic screen had approximately seven shallow scratches in its surface, and a smudge of what appears to be adhesive in the top centre area of the screen.
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Gregg M.D.; Bernie Ziomkiewicz
Exhibit History
To display in Museum (North Gallery Room 1013): "Electricity and the Invisible Ray," Oct. 2006 - Feb 2016.
Spring 1998-Sept. 17, 2002: on exhibit in Kingston General Hospital Hall of Honour in "The Advent of X-rays"
Images
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rotating anode tube; imaging tube

https://mhc.andornot.com/en/permalink/artifact455
Dates
1970
1980
circa 1970-1980
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004039
Description
X-ray tube consisting of a hollow cylindrical glass tube which is rounded and wider at the bottom and has cylindrical metal pieces within; the top of the tube has the top of a metal rod coming out and has a strip of cork glued on the top edge; the bottom of the tube is blocked up with a small metal…
  3 images  
Accession Number
995004039
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
X-ray tube consisting of a hollow cylindrical glass tube which is rounded and wider at the bottom and has cylindrical metal pieces within; the top of the tube has the top of a metal
rod coming out and has a strip of cork glued on the top edge; the bottom of the tube is blocked up with a small metal plate with screws in it.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Machlett
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1970
1980
circa 1970-1980
Material
metal: silver
glass: clear
cork: grey
Inscriptions
Metal piece inside is stamped, "k53842 Machlett FDX 1-2"
Permanent Location
Storage Room 0010
0010-F4-10
Dimension Notes
Length: 27.5 cm. x Width: 10.5 cm.
Condition Remarks
Tube was dusty and dirty; the glass has a crack in it, and thus the tube is possibly dangerous (the tube being vacuum) and should be handled as little as possible
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Bernie Ziomkiewicz; Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Grigg, MD; (similar to tube on p. 425)
Images
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stationary anode tube; Coolidge tube (filament)

https://mhc.andornot.com/en/permalink/artifact432
Dates
1930
1950
circa 1930-1950
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004016
Description
Early stationary anode tube in its housing which consists of a cylndrical black plastic tube which has a screw attachment (similar to a light bulb) at one end and an attachment of 9 flat circular metal disks (each with 6 holes punched into them) at the other end (removable); the middle of the tube …
  1 image  
Accession Number
995004016
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Early stationary anode tube in its housing which consists of a cylndrical black plastic tube which has a screw attachment (similar to a light bulb) at one end and an attachment of 9 flat circular metal disks (each with 6 holes punched into them) at the other end (removable); the middle of the tube has a circular opening with threads (which allows something to be screwed on); the opening shows an inner glass tube with metal pieces inside it.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Dates
1930
1950
circa 1930-1950
Material
metal: silver
plastic: black
glass: clear
Permanent Location
Storage Room 0010
0010-F4-10
Dimension Notes
Length: 36.5 cm. x Width: 8.6 cm.
Condition Remarks
The tube was dusty and dirty
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.; Bernie Ziomkiewicz (similar to Machlett's CYR - page 82)
Research Facts
Possibly made by Machlett (see Grigg p. 82); metal disks at one end for air-cooling the tube; clip attached to these is for a high-voltage lead; light bulb-like end is the filament contact
Images
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stator-rotating anode tube

https://mhc.andornot.com/en/permalink/artifact470
Dates
1940
1965
circa 1940-1965
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004054
Description
Stator-rotating anode tube -- anode rotator, which consists of a cylindrical metal frame with lead at the base and steel (?) at the top; there are two round rolls of cloth-wrapped copper wire either side of a round steel (?) part; above this is a cylindrical plastic (?) part; all of these have a ho…
  2 images  
Accession Number
995004054
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Stator-rotating anode tube -- anode rotator, which consists of a cylindrical metal frame with lead at the base and steel (?) at the top; there are two round rolls of cloth-wrapped copper wire either side of a round steel (?) part; above this is a cylindrical plastic (?) part; all of these have a hole in their centre to allow a tube to be placed within; the top has three screw attachments with two wires coming out.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Dates
1940
1965
circa 1940-1965
Material
metal: grey; black; brown; grey
fabric: beige
plastic (?): brown
Permanent Location
Storage Room 0010
0010-F3-1
Dimension Notes
Width: 10.5 cm. x Depth: 19.8 cm.
Condition Remarks
Anode rotator was dusty and dirty
Copy Type
Original
Reference Types
Person
Reference Comments
Bernie Ziomkiewicz; Nancy Chisholm
Research Facts
Tube rotator for an anode tube
Images
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therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact433
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004017
Description
Therapy rectifier which consists of a cylindrical black glass tube with a screw attachment (similar to a light bulb) and a metal section at one end and a similar screw attachment and ridged metal section at the other end.
  1 image  
Accession Number
995004017
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Therapy rectifier which consists of a cylindrical black glass tube with a screw attachment (similar to a light bulb) and a metal section at one end and a similar screw attachment and ridged metal section at the other end.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Philips (Norelco)
Site Made (City)
New York
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver
glass: black
Inscriptions
Label on lthe end of the tube reads, "Philips Metalix - Valve Nr. X6045 Voltage 125 kv peak Made in U.S.A. Saturation curr.: 200 mA filament curr: 7.5 A 14.5 V Saturation curr.: 400 mA filament curr: 8.0 A 16.2 V. Saturation curr.: 1000 mA filament curr.: 8.5 A 18.0 V for short times."
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 54.0 cm. x Width: 10.0 cm.
Condition Remarks
The tube was dusty and dirty
Copy Type
Original
Reference Types
Person
Reference Comments
Nancy Chisholm
Research Facts
Identified as having a therapeutic function
Images
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therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact434
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004018
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube…
  1 image  
Accession Number
995004018
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube itself; (likely made by see 995.004.019).
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Machlett Laboratories Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver
glass: clear
plastic: black
Inscriptions
Metal piece inside the glass has stamped into it, "G12059"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 27.5 cm. x Width: 8.5 cm.
Condition Remarks
The tube was dusty and dirty
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.M. Grigg, M.D.
Images
Less detail

therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact435
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004019
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube…
  1 image  
Accession Number
995004019
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube itself.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Machlett Laboratories Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver
glass: clear
plastic: black
Inscriptions
Metal piece inside the glass has stamped into it, "F80404"; there are fragments of a label on one plastic end from which can be read "Machlett Valve ... Maximum Voltage"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 27.5 cm. x Width: 8.5 cm.
Condition Remarks
The tube was dusty and dirty; the black plastic cap at the end with two rods sticking out is cracked
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.M. Grigg, M.D.
Images
Less detail

therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact445
Dates
1940
1960
circa 1940-1960
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004029
Description
Rectifier valve which consists of a cylindrical glass tube with cylindrical metal pieces inside; the top of the glass tube has a cylindrical metal rod sticking out of it; the bottom of the glass tube has a rounded black plastic piece around a metal rod and two white porcelain pieces which allow it …
  1 image  
Accession Number
995004029
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Rectifier valve which consists of a cylindrical glass tube with cylindrical metal pieces inside; the top of the glass tube has a cylindrical metal rod sticking out of it; the bottom of the glass tube has a rounded black plastic piece around a metal rod and two white porcelain pieces which allow it to be attached to something else.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Eureka
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1940
1960
circa 1940-1960
Material
metal: silver
plastic: black
glass: clear
porcelain: white
Inscriptions
Manufacturer's label reads, "Eureka X Ray. Type EV-5-75 9.7 to 12.2 Fil. Volts 12.4 to 14.2 Fil. Amps."
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 31.0 cm. x Width: 8.5 cm.
Condition Remarks
The valve was dirty and dusty
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.
Images
Less detail

therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact449
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004033
Description
Therapy rectifier tube which consists of a cylindrical clear glass tube with another glass tube within as well as wires; the bottom of the tube is sealed with a rounded metal section and ends in a screw attachment (similar to a light bulb); the top of the tube has a heavy ridged metal section with …
  1 image  
Accession Number
995004033
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
MM= Radiography -- tube
Description
Therapy rectifier tube which consists of a cylindrical clear glass tube with another glass tube within as well as wires; the bottom of the tube is sealed with a rounded metal section and ends in a screw attachment (similar to a light bulb); the top of the tube has a heavy ridged metal section with another screw attachment at the top.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Philips (Norelco)
Site Made (City)
New York
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver; black
glass: clear
Inscriptions
Manufacturer's label at base reads, "Philips Metalix-Valve Nr. X5975 Voltage 115 kv peak Made in U.S.A. Saturation curr.: 200 mA filament curr.: 7.5 A 14.5 V Saturation curr.: 400 mA filament curr.: 8.0 A 16.2 V. Saturation curr.: 1000 mA filament curr.: 8.5 A 18.0 V for short time"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 44.0 cm. x Width: 9.3 cm.
Condition Remarks
Tube was dirty and dusty
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, MD
Research Facts
Identified as having a therapeutic function
Images
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therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact450
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004034
Description
Rectifier tube which consists of a hollow cylindrical glass tube with cylindrical metal pieces within; the top of the tube is capped with a black plastic piece (cracked) from which the top of a glass tube emerges; there are also six screw holes; the bottom of the tube is capped with a black plasti…
  1 image  
Accession Number
995004034
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Rectifier tube which consists of a hollow cylindrical glass tube with cylindrical metal pieces within; the top of the tube is capped with a black plastic piece (cracked) from which the top of a glass tube emerges; there are also six screw holes; the bottom of the tube is capped with a black plastic section which has a screw hole in the centre and four cut holes around this.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Machlett Laboratories Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver
glass: clear
plastic: black
Inscriptions
Manufacturer's label at bottom reads, "ML-4IU Machlett Made in U.S.A. Maximum Voltage 140 Pkv Filament Voltage 6.0 Volts"; metal piece within is stamped "H34702"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 20.8 cm. x Width: 6.3 cm.
Condition Remarks
Tube was dirty and dusty; top section of plastic is cracked
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, MD
Images
Less detail

therapy rectifier tube

https://mhc.andornot.com/en/permalink/artifact451
Dates
1930
1940
circa 1930-1940
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004035
Description
X-ray tube which consists of a hollow cylindrical glass tube with cylindrical metal pieces within (and a small amount of oil); the top of the tube is capped with a black plastic piece from which the top of a glass tube emerges; there are also seven screw holes, two of which have cloth-covered wires…
  1 image  
Accession Number
995004035
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
X-ray tube which consists of a hollow cylindrical glass tube with cylindrical metal pieces within (and a small amount of oil); the top of the tube is capped with a black plastic piece from which the top of a glass tube emerges; there are also seven screw holes, two of which have cloth-covered wires attached; the bottom of the tube is capped with a black plastic section which has a screw hole in the centre and two cut holes either side of it.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Machlett Laboratories Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
1940
circa 1930-1940
Material
metal: silver
glass: clear
plastic: black
fabric: black
Inscriptions
Manufacturer's label at bottom reads, "ML-4IU Machlett Made in U.S.A. Maximum Voltage 140 PKV Filament Voltage 6.0 Volts"; metal piece within is stamped "H67502"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 20.8 cm. x Width: 6.3 cm.
Condition Remarks
Tube was dirty and dusty; glass has a residue at the bottom which clouds the surface; there is a yellowish liquid inside the tube
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, MD
Research Facts
Oil within the glass tube likely got there as a result of the tube having been immersed in oil at some point and leaking
Images
Less detail

thoriated filament valve; rectifier tube

https://mhc.andornot.com/en/permalink/artifact443
Dates
1960
1970
circa 1960-1970
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004027
Description
Small valve rectifier with a thoriated tungsten filament which consists of a cylindrical glass tube with cylindrical metal pieces inside; the bottom of the tube is capped with black plastic and has a metal screw attachment (similar to a light bulb); the top of the tube has a cylindrical metal rod c…
  1 image  
Accession Number
995004027
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Small valve rectifier with a thoriated tungsten filament which consists of a cylindrical glass tube with cylindrical metal pieces inside; the bottom of the tube is capped with black plastic and has a metal screw attachment (similar to a light bulb); the top of the tube has a cylindrical metal rod coming out of it.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Eureka
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1960
1970
circa 1960-1970
Material
metal: silver
plastic: black
glass: clear
Inscriptions
Manufacturer's label at bottom reads, "Eureka EV 6-12 Thoriated Fil Valve 6.0 +- 0.3 V. Fil. Conn. 7.5 Amps. Nominal. 10.0-12.0 V. Fil. Conn. 40 Amps Nominal."
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 29.0 cm. x Width: 6.0 cm.
Condition Remarks
Rectifier was dirty and dusty; some scrape marks can be seen on the plastic at the bottom
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.
Research Facts
Light radioactive source (thoriated)
Images
Less detail

valve tube; rectifier tube

https://mhc.andornot.com/en/permalink/artifact437
Dates
1900
1930
circa 1900-1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004021
Description
Early valve rectifier tube which consists of a cylindrical glass tube with a rounded centre; the glass tube has two plastic-capped ends, the top end has a short metal rod sticking out of it; the bottom end has a screw attachment (similar to a light bulb) coming out of it; there are cylindrical meta…
  1 image  
Accession Number
995004021
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Early valve rectifier tube which consists of a cylindrical glass tube with a rounded centre; the glass tube has two plastic-capped ends, the top end has a short metal rod sticking out of it; the bottom end has a screw attachment (similar to a light bulb) coming out of it; there
are cylindrical metal pieces within the glass tube itself; the tube screws onto a plastic and wood base.
Number Of Parts
1
Provenance
Queen's University School of X-Ray; from Professor Thumm's collection.
Maker
Machlett Laboratories, Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1900
1930
circa 1900-1930
Material
metal: silver
plastic: black
wood: brown
glass: clear
Inscriptions
Part label on top of valve reads, "Machlett Valve Tube Type ML-1SE Maximum Voltage 125 pk Normal Filament Adjustment ..?.. 10 Volts"; stamped on lower inside metal tube is the number "H50616"
Permanent Location
Storage Room 0007
0007-F2-3
Dimension Notes
Length: 44.5 cm. x Width: 22.0 cm.
Condition Remarks
Tube was dirty and dusty; the label on the top of the tube has deteriorated and parts have flaked off
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.
Images
Less detail
Dates
1925
1930
circa 1925-1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.491.1 a-b
Description
X-Ray tube (a); at one end is a series of radiator fins at right angles to the tube and spaced at regular intervals around the tube; above the fins is a cylindrical section of hard plastic, followed by a chrome-plated (?) section; in the middle of this section is a raised piece of metal whose outer…
  1 image  
Accession Number
1969.491.1 a-b
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
X-Ray tube (a); at one end is a series of radiator fins at right angles to the tube and spaced at regular intervals around the tube; above the fins is a cylindrical section of hard plastic, followed by a chrome-plated (?) section; in the middle of this section is a raised piece of metal whose outer circumference is threaded; this piece has openings at both ends, and at the base is a thickish glass window; on the opposite side of the centre piece is a metal plate with maker's information; beyond the centre piece is another plastic section that meets with a metal cap at the end; in the middle of the flat-topped cap is a fuse-like object that extends outward (lengthwise) from the middle; tube sits on a wooden mount (b).
Number Of Parts
2
Part Names
a - tube - Size: Length 47.0 cm x Diam. 8.3 cm
b - mount - Size: Length 33.3 cm x Width 15.1 cm x Depth 17.5 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Muller-Media-Metalix
Site Made (Country)
Germany
Dates
1925
1930
circa 1925-1930
Date Remarks
From AM card.
Material
metal: silver
plastic: dark red
glass: clear
wood
Inscriptions
On plaque on tube: "MULLER-MEDIA-METALIX // NR. 340525 6kW // Made in Germany"
Permanent Location
Storage Room 0010
0010-F4-9
Copy Type
Original
Reference Types
Photo
Research Facts
Latest development of Phillips' line focus tube; note extra-heavy radiator on anode for heat dissipation.
Images
Less detail
Dates
1930
1935
circa 1930-1935
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.492.1 a-b
Description
X-ray tube (a) resting on sponge material on a wooden mount (b); metal cylinder has an opening for glass lens; radiator fins at one end, small threaded neck at other end; base is like an upside-down bench, with semicircular cutouts for the tube; metal sleeve at centre of tube has a plate with manuf…
  1 image  
Accession Number
1969.492.1 a-b
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
X-ray tube (a) resting on sponge material on a wooden mount (b); metal cylinder has an opening for glass lens; radiator fins at one end, small threaded neck at other end; base is like an upside-down bench, with semicircular cutouts for the tube; metal sleeve at centre of tube has a plate with manufacturer's information.
Number Of Parts
2
Part Names
a - X-ray tube - Size: Length 54.5 cm x Diam. 8.5 cm
b - mount - Size: Length 38.0 cm x Width 15.0 cm x Depth 18.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Muller-Meida-Metalix, System Philips
Site Made (Country)
Germany
Dates
1930
1935
circa 1930-1935
Material
metal: black; silver
wood: black
glass: clear
sponge
Inscriptions
On plate at centre of tube: "MULLER-MEDIA-METALIX // SYSTEM PHILIPS // NR. 285906 2.5 KW // HELIUM"
Permanent Location
Storage Room 0010
0010-F4-8
Condition Remarks
Sponge rest on (b) beginning to harden; top for wooden mount to hold (a) in place is missing.
Copy Type
Original
Reference Types
Photo
Research Facts
Radiator fins allow fast cooling of the anode, without which the tungsten target material would melt; anode temperature frequently reached 1000° C.
Images
Less detail
Dates
1925
1930
circa 1925-1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.493.1 a-d
Description
Glass X-ray tube, through which metal tube is visible, and also a second glass tube with wire; halfway down the tube is the lens set in a metal sleeve; metal ends, one of which is threaded; no radiator fins; tube rests in semicircular cutouts on a wooden base, with wooden hal-circles that fasten ov…
  1 image  
Accession Number
1969.493.1 a-d
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
Glass X-ray tube, through which metal tube is visible, and also a second glass tube with wire; halfway down the tube is the lens set in a metal sleeve; metal ends, one of which is threaded; no radiator fins; tube rests in semicircular cutouts on a wooden base, with wooden hal-circles that fasten over top of the tube to attach it more firmly to the base.
Number Of Parts
4
Part Names
a - X-ray tube - Size: Length 56.0 cm x Diam. 6.3 cm
b - mount - Size: Length 38.0 cm x Width 15.0 cm x Depth 18.0 cm
c - wooden half circle - Size: Length 10.0 cm x Depth 4.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Philips Metalix
Site Made (Country)
Germany
Dates
1925
1930
circa 1925-1930
Material
glass: clear
metal: silver
wood: dark brown
Permanent Location
Storage Room 0010
0010-F4-8
Copy Type
Original
Reference Types
Photo
Research Facts
Anode face was at an angle of 20° (early tubes were at 45°); this allowed a heavy load to be used, but focal spot sixe did not have to be increased, as geometrically focal spot size appeared small, due to the angle of the anode face.
Images
Less detail

29 records – page 1 of 2.