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Hoffman Amps Forum image Author Topic: Cap value question  (Read 1965 times)

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Offline pbman1953

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Cap value question
« on: February 09, 2018, 06:15:48 pm »
I have a Sunn 2000s that had some noise when turning on but worked just fine. But tapping the case had the same noise.


I found that a cap's ground broke free and the lead is too short to be re-soldered.


 This cap is a 20mf at 500 is in parallel with another 22mf at 500. The total is 42mf at 500v. I have a JJ- 80MF at 500. Can I take out both and use the JJ?




Thanks
« Last Edit: February 09, 2018, 06:38:50 pm by pbman1953 »

Offline shooter

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Re: Cap value question
« Reply #1 on: February 09, 2018, 08:04:21 pm »
should be fine, the 30uF might need to stay close to value depending on the Rec tubes finicky factor.
Went Class C for efficiency

Offline pbman1953

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Re: Cap value question
« Reply #2 on: February 09, 2018, 08:17:36 pm »
Here are the 3 previous stage values




110 at 600


50 at 700


22 at 500


I'm using webber copper caps

Offline pbman1953

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Re: Cap value question
« Reply #3 on: February 10, 2018, 01:03:16 pm »
Any other comments after posting my stage values?

 


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