Is there a single TO-3P-3 package that could handle this higher rated output?
I doubt it, the only thing I can guarantee is that it will outlast an original STK-0050 and can be repaired for cheap.Will it completely change how the 780 sounds?
That was never the intent of this project and should be avoided. Mouser or other authorized disti. are the best place to order parts from, you have a guarantee.there should be a kit of components available
They don't flip anymore. They cook both sides at once.you can opt to flipping burgers at McD instead
If I had a schematic of a Fisher CA-800, that might help Without seeing a CA-800 schematic, I can not confirm nor simulate that the module would work. It is a chance that you are taking. I am fairly confident that it should work, if these Fisher designs are similar enough but can not be 100% sure without having a schematic to review and sim against.
As HBrown has already done a build and tested it out on a CA-880, the CA-800 supply voltage of +/-55V is not a problem.
Good luck and here's hoping all goes well.
I have to check again its been years but I have a fisher BA6000 with STK0100ii and I believe my rail voltage is closer to 65, is this viable?
These stk-0050 kits are not meant for amps with 65V rails. A STK0100ii is a different design, it is, iirc a EF triple with two sets of o/p pairs. So I say off the cuff, do not bother with this design in a BA6000, as it would not survive if asked to drive loads at full power for long periods of time.but if we think I can have a favorable outcome I'm going to have these kits professionally made and installed in 4 of those amps
These stk-0050 kits are not meant for amps with 65V rails. A STK0100ii is a different design, it is, iirc a EF triple with two sets of o/p pairs. So I say off the cuff, do not bother with this design in a BA6000, as it would not survive if asked to drive loads at full power for long periods of time.
I'd have to investigate what goes on in a Fisher BA6000. problem is the effort it takes to do a new design, test, mechanics have to be worked out, it is not a simple task. A lot of effort for a one of is a problem.