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 plastiā¦
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.
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