Kingston General Hospital School of X-Ray Collection
Category
Basic Science Artifacts
Classification
Basic Science, Laboratory Instrumentation
Accession Number
000019002
Description
A photovolt transmission density unit (densitometer) consisting of metal rectagular base protecting projection lamp with white acrylic top panel mounted on top of base; on off switch and dial on top panel; arm of unit extends out of top panel; electrical cord connected to the arm; two intertwining…
A photovolt transmission density unit (densitometer) consisting of metal rectagular base protecting projection lamp with white acrylic top panel mounted on top of base; on off switch and dial on top panel; arm of unit extends out of top panel; electrical cord connected to the arm; two intertwining electrical cords are connected to the arm at the top; lens on underside of arm points at circular glass covered opening in top panel.
Raised letters on front of machine: "PHOTOVOLT", printed on metal label: "PHOTOVOLT // NEW YORK CITY // SERIAL NO. // 6609 // MADE IN U.S.A. // MODEL NO. // 52".
Permanent Location
Storage Room 0007
0007-E2-1
Dimension Notes
Length 51.2 cm x Width 22.9 cm x Depth 29.6 cm
Condition Remarks
Needs extensive cleaning for heavy dust.
Copy Type
Original
Reference Types
Document
JPG
Reference Comments
"Manufacturers Manual", Photovolt, Model No. 52; CD #2
Research Facts
Used to measure the density of negatives in ordinary photography as well as in photolithography and photoengraving, black and white motion picture film, other transparencies, and colour analysis on colour film; spot-photometer is not included with this machine but it is needed to measure the density.