Makes for an excellent method so switching to standby. Also, if a fault in
the anode circuit happens and the anode voltage is removed, the screen
voltage needs to be switched off asap to prevent tube damage.
The same switching circuit can do both jobs.
73,
Gerald K5GW
In a message dated 11/6/2013 9:36:14 A.M. Pacific Standard Time,
dj7ww@t-online.de writes:
What is the reason to have the screen unconnected from its voltage or
switched?
73
Peter
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Ian White
The bleed resistor is not part of the power supply. It is installed
close to the tube itself, connected directly between the screen grid and
ground (cathode). Its purpose is to prevent the screen grid from
floating unconnected during the few milliseconds while the screen relay
contacts are in motion between the RX and TX positions.
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