GE BA-5-A capacitor replacement help
« on: January 21, 2021, 02:10:41 PM »
Here is a picture of the cap and schematic to help id what to use to replace them.

Just typical film caps?


mjrippe

Re: GE BA-5-A capacitor replacement help
« Reply #1 on: January 21, 2021, 02:26:07 PM »
I'm not sure from the photo but they look like paper-in-oil caps.  If so, test for leakage and leave them in there if they are ok.  If they are another type and/or leaky, a good quality film cap would be fine.

EmRR

Re: GE BA-5-A capacitor replacement help
« Reply #2 on: January 21, 2021, 02:27:24 PM »
Yeah those almost never go bad, unless visibly leaking oil.   High $$$ audiophile cap there! 
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

Re: GE BA-5-A capacitor replacement help
« Reply #3 on: January 21, 2021, 03:24:14 PM »
Thanks guys,

Some of them are kinda squeezed looking so I thought they may be bad.

EmRR

Re: GE BA-5-A capacitor replacement help
« Reply #4 on: January 21, 2021, 04:37:19 PM »
yeah they look that way in both of the ones I've restored, they were all good though. 
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

rackmonkey

Re: GE BA-5-A capacitor replacement help
« Reply #5 on: January 22, 2021, 12:01:38 AM »
Do you have pictures of the whole unit you’d mind sharing?
Whether you think you can or you think you can't, you're probably right.

EmRR

Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

rackmonkey

Re: GE BA-5-A capacitor replacement help
« Reply #7 on: January 22, 2021, 03:14:50 AM »
Thanks. Is this the same one the OP is working on?

I’d forgotten the reference to a 600:600 input into PP grids. I guess the small amount of added noise is okay to avoid the voltage step up of a traditional 600:60-80k in this case?
Whether you think you can or you think you can't, you're probably right.

EmRR

Re: GE BA-5-A capacitor replacement help
« Reply #8 on: January 22, 2021, 08:52:10 AM »
No this is the pair I worked on. 
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

 

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