Virtual Valve Museum
Virtual Valve Museum | Search: (use * for wildcard)
About the museumMuseum exhibitsSupportersDocumentsLinks to other sites, suppliers etc.

CV1950 heptode

 

Size This valve measures 115x38mm overall and has an octal base with 7 pins fitted

 

Heater voltage6.3V
Heater current300mA
Max anode voltage250V
Max screen voltage150V
Operating conditions
Anode voltage250V
Screen voltage150V
Control grid voltage-6V
Mixer grid voltage15V DC
Peak oscillator voltage18V
Total cathode current12mA average
Average conversion conductance310µmhos
Conversion impedance1Mω
Capacitances
Cg1-g30.26pF
Cg1-a0.17pF
Cg1-all6.0pF
Cg3-all11.25pF
Ca-all8.5pF
Cg3-a1.0pF

Note: the above figures are for the CV1280. The CV Register indicates that it is
an equivalent and both it and the CV1950 share the same prototype (X64)

Pin Function
1n/c
2Heater
3Anode
4Screen grid (G2 + G4)
5Oscillator grid (G3)
6no pin
7Heater
8Cathode + suppressor grid (G5)
TCControl grid (G1)
CV1950

This file was last modified 12:38:38, Friday July 29, 2022