On 12/15/2020 4:25 PM, gudguyham--- via Amps wrote:
The 425 amp has a very keen anti-hotswitching “ watchdog” circuit.
Yes. While this circuit is documented in the set of schematics that are
part of the manual, the split of this circuitry across multiple pages
describing each circuit board makes it tricky to follow. Years ago, I
redrew the schematic in AutoCAD, putting everything in a single pdf,
with dashed lines showing what parts were on each board. That pdf is in
my website, along with several others breaking out parts of the
circuitry for easy printing.
k9yc.com/publish.htm
Scroll down.
Note that these are partial schematics that omit details of input and
output RF circuitry.
73, Jim K9YC
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