There's been some good suggestions on how to monitor the bias supply
and prevent damage when it goes bye bye.
but..
the first thing everyone needs to take into consideration is this.
Do you want to put the protection inside the power supply?
Or inside the rig?
the problem with a loose connector cooking the radio would not have
been solved by a circuit in the power supply.
on the other hand...
a pcb wired inside the rig must have the dimensions to fit EVERY
Drake rig.
To use such a design would require a major rewire of the power
socket, adding the new pcb, and then rewiring the rig.
WHile it's known that loosing the bias will damage the tubes (PA) is
the solution worth the effort?
Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
Note: No trees were killed in the sending of this message, but a
large number of electrons were terribly inconvenienced
