With respect to 3CX800A7's, and the like, Tom, W8JI, writes:
>Be sure to add a grid over-current protection circuit to your amp, if
>it does not have one, or you will eat up tubes.
>
>A fuse is NOT enough, nor is a warning light. You need something that
>quickly knocks the [name your amp] off line if the Ig ever gets over
>[name your maximum comfort level] mA... even for a brief instant.
Agreed.
My copy of Bill Orr's Radio Handbook shows one version of a grid
over-current protection circuit designed, as I recall, by W8ZR.
Some years ago, a fellow (might have been ZR) was selling printed-circuit
boards for his own flavor of circuit.
What's the latest wisdom on creating a suitable circuit? Any source
of PC boards or other short cuts to getting the job done?
73 de Bob, K0KR
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