Browse Items (11 total)

  • Tags: Valves

Mullard PM4 #2.JPG
For power amplification
3.7 volts

Elpico box #2.JPG
Elpico Electronic radio valve PL81 box.
Green box, cardboard with yellow and black writing.
"12 months guarantee. Cylinder valve."

SC Mullard PY88 box & valve (1).JPG
Diode PY88 Base: 9 pin, England, 1964-65. Iheater       300mA Vheater       30V PIVmax        6.6kV Ianode max   220mA

SC Tungsram DDPP6B valve (1).JPG
Tungsram radio valve DDPP6B England, 1939. Vf      6.3V If       1.4A

SC Mullard EL37 box & valve No. 356 (1).JPG
Mullard EL37 Radio Valve Black Base Vheater 6.3V Iheater 1.4A Vanode_max 250V 25 watt audio output power pentode grey plate

SC Mullard EL37 box & valve No. 356 (1).JPG
Mullard EL37 box for Mullard EL37 Valve

Black Base Valve

SC Mullard EL38 box & valve No. 357 (1).JPG
Mullard EL38 valve

The EL38 was designed as a television line output stage valve in the late 1940s. In the early days of CRT based television the tubes could have been either electrostatic or magnetic deflection. The EHT supplies were probably…

SC Mullard Date Book No. 360 (1).JPG
Mullard Data Book 1959/60.

SC Mullard EF39 box with EF37a valve No. 361 (1).JPG
Mullard EF37A radio valve in a Mullard EF39 valve box. Iheater      200mA Vheater      63V Vanode max 300V

SC Type 250TH VT220 Eimus No. 338  (1).JPG
Eimac 250TH High-MU Triode. Base: 4 pin, No. 5001B, USA, 1951. Filament: Thoriated tungsten / Vf 5.0 volts / If 10.5 Ampere / Direct / Transconductance 6650 umhos / (Ib = 300mA, Eb = 3000, er = -20) Typically RF: Vp 4000 volts, Ip 350mA, Ic…
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