"Mike Dorworth, K4XM" <[EMAIL PROTECTED]>
On a BC-610 using a external VFO, just kill exicitation, ALL METERS fall to
ZERO, the B plus will go to 4000 VOLTS and if you have bypassed the
interlock and touch the link you will be GONE, Forget the meters! Trust the
stick! I know!
As I recall the 610 doesn't have a plate voltage meter. Every rig should
have one. Even though it can fail, it offers one more stage of redundancy
of protection. When I shut off my plate supply and see the plate volt meter
slowly drop back to zero, I can be 99+% sure there is no high voltage. On
my rig, all the grid and plate current meters drop to zero key-up on CW as
well.
That's one reason why all my HV supplies shut down on standby. I don't like
the idea of HV silently lurking in the rig when it's not in use. If I ever
did slip up, I think I would have a better chance of survival discharging a
capacitor through my body, than serving as a load resistor on an active
power supply.
Besides, keeping the HV on all the time often generates noise and hash in
the receiver.
Don k4kyv
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