At 04:15 AM 3/17/99 +0000, you wrote:
>
>Was going through some "junque" last night and came across a tube and
>socket I've had for a while (twenty years or more) and couldn't
>remember when or why I came by it. Anyway... I tried to look up the
>number 3D22A and couldn't seem to find anything on it. Tried the old
>
>From the 1950 Vade-Mecum catalog (Belgium)
Made by RCA
Heater : 6.3V @ 2.6 amps
PIV : 1350 volts
Max forward voltage : 650
Max cathode current : 6amps
Grid voltage : - 200 volts
Grid current : 5 ma
Basing diagram indicates its a tetrode, but there's no data for the screen
grid.
Phil
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