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Electronic Valve - Telefunken, Triode, Type REN1104, circa 1928 Object Reg. No: ST 028332

Low mu general purpose triode, used as a class A power output amplifier. Manufacturer: Telefunken. Germany.
Equivalent to Type APP4120.
4 volt indirectly heated cathode.
Conical bulb on 5 pin european style base.
Acquisition Information:
Donation from I. Morton, 1972
Discipline: Technology
Dimensions: 110 mm (Length), 45 mm (Diameter)

More information

Tagged with: radio receivers, thermionic electron valves
Themes this item is part of: Engineering Collection, Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: amplification
Inscriptions: Bulb: D.R.P./REN1104/Telefunken/4 Volt
Base: 28322 (incorrect MV registration number)
Manufacturer: Telefunken, Germany, circa 1928
  1. [Book], Mr Gerald Tyne, Saga of the Vacuum Tube, 1987, 1987, 444 Pages

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