CV2411 output pentode
|This valve measures 65x19mm overall and has a B9A base
|Max anode voltage (Ia=0) (a)||550V|
|Max screen voltage (Ig2=0) (a)||550V|
|Max anode operating voltage (a)||275V|
|Max screen operating voltage (a)||275V|
|Max anode dissipation (a)||9.5W|
|Max screen dissipation (a)||2.0W|
|Anode current (b)||27mA|
|Mutual conductance (b)||3.2mA/V|
|Inner amplification factor (b)||8.5|
|Max cathode current (a)||42mA|
|Max heater-cathode voltage (a)||65V|
|Power output (d)||80mW|
(a) Absolute maximum values
(b) Measured at Va=Vg2=250V and Rk=550 ohms
(c) measured without a metal screen
(d) Measured at Va=Vg2=50V, Vg1=3.3V, Ra=12.5k ohms and V in = 1.8V r.m.s.
|3||Cathode + suppressor grid|
|9||Heater centre tap|
The valve carries the markings 'Ef0 R7L' and the letter 'G'
This file was last modified15:10:34, Tuesday September 02, 2014
FOR SALE: Note that any valve which is not CV marked is now for sale. Contact me via email - see the home page.