Thanks for all the help on my first project SA300. It is sounding good and only caught fire once.
I had a Fisher 400 given to me. All fisher branded tubes. The fuse was blown, I believe that was a good thing. I slowly brought it up on a variac with dim bulb. Deoxit. Both channels played with distortion on FM. Amazingly with CD input it sounds pretty good.
I installed the 10 Ohm Cathode resisters and rear lugs to test it. .377 .284 .288 .285.
My power supply voltage tests look pretty good . see photos.
I plan to do Dave Gillespie's mods one at a time starting with the EFB mod. Later IBAM, and Power supply modification.
I have read the "Improving the Fisher 400" thread numerous times, and will be using it as my guide.
Any suggestions are surely welcome and thanks in advance for all the help I will need.
Curt
I had a Fisher 400 given to me. All fisher branded tubes. The fuse was blown, I believe that was a good thing. I slowly brought it up on a variac with dim bulb. Deoxit. Both channels played with distortion on FM. Amazingly with CD input it sounds pretty good.
I installed the 10 Ohm Cathode resisters and rear lugs to test it. .377 .284 .288 .285.
My power supply voltage tests look pretty good . see photos.
I plan to do Dave Gillespie's mods one at a time starting with the EFB mod. Later IBAM, and Power supply modification.
I have read the "Improving the Fisher 400" thread numerous times, and will be using it as my guide.
Any suggestions are surely welcome and thanks in advance for all the help I will need.
Curt
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