Gfa 555 chassis

[AnthonyA]

Hello

I bought a gfa 555 from a local forum.

But alas, the driver board is no longer gfa 555 adcom. Other parts seems to be working.

Is there any nice diy project thats papa Nelson's. That I could make use to put inside the gfa 555, at least I could make use of the power supply and capacitor ? The voltage is 82vdc..

Thank you in advance for help

 

[Zen Mod]

for something smaller , in terms of voltage (rails) , while greater Iq (no other things in Paparealm) , there is a possibility to connect two 120Vac primaries in series , thus halving 82Vdc rail

however , you can do that if xformer is dual primary thingie , and you must be aware that resulting VA of transformer is also cut in half

we need more info , best covered with few pics , about actual situation in amp ... are electrolytics original , is it wort to keep them etc.

 

[AnthonyA]

Everything is original except for the driver board

 

[AnthonyA]

Thank you so much

 

[Zen Mod]

more pictures , better ones , please

from that one , I can see (?) that amp had hard life....... heavily cooked dust everywhere

 

[AnthonyA]

 

[Zen Mod]

judging by overall condition , those caps are just for waste bin

so , now you have a great case and possibly xformer

 

[mpmarino]

...and if any of those Toshiba outputs test good - they'll move on ebay, or they're handy for the parts drawer. Sorta hard to find these days.

You could do what ZM said in post 2 to cut the voltage in half, and keep an eye out for the up and coming AB100

 

[AnthonyA]

Thank you for help.

Time for dismantle