hillbilly3302 wrote:

looking for a 1N2637.... its the solid state replacement for a 866 tube

k5drc

The Gonset GSB 101 uses the same setup - 2 866's & 4 811's
I replaced the 866's with series strings of 1N5408's, and
added a turn on delay, because you get a pretty good surge
with the solid state rectifiers. Power to the HV xformer
is fed through a resistor for about 5 seconds, then a relay
transfers and shorts out the resistor. You don't need 3 amp
diodes (1N5408), but I was building another supply at the
same time and had them on hand.

The Gonset uses a string of capacitors, fed through a 5 - 50
swinging choke. Each cap has a bleeder across it, as I recall,
rather than a single bleeder. If the Warrior uses the same style
choke input filter, the choke could be bad. Mine was missing -
in fact the previous owner had messed with it and substituted
something different, which he did not bolt down. I bought the
thing at a scrap yard for $20.00, and all the tubes had been
smashed by that "choke". I guess it really was a swinging choke!
The crying shame is that the original problem was a bad solder
joint to the caps. I surmise that the previous owner mis-diagnosed
the problem as a bad choke and tried substituting various filament
transformers for the choke.

In any event, that choke takes a helluva surge when the solid
state diodes suddenly conduct upon power on. So you may want
to include a soft start circuit, once you diagnose your hum
problem. While you're at it, check the bleeder resistor(s)
and replace as needed. I'd recommend using 2 parallel resistors
to replace each bleeder in your Warrior, if you have the
room. Use the same wattage and twice the resistance of the
bleeder you are replacing for each new resistor, effectively
doubling the wattage. Also, you should form the capacitor(s).
I'm assuming the replacement cap has been on the shelf for a
long time. I formed mine by powering the amp from a variac,
and over the course of 24 hours raised the voltage in 10 volt
increments every couple of hours until I went from 10 volts to
120.

Good luck - it's nice to get these old beasts up to snuff.