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 Post subject: capacitor block replacement
PostPosted: Mar Mon 05, 2018 11:46 pm 
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Joined: Jan Wed 17, 2018 8:59 pm
Posts: 105
Before I buy the replacement caps I would like to check to see if I am figuring the right amount. I originally thought I would need 16 caps in total (not including c-17). After review, I think I would only need 9(not including c-17). Thanks for the help!

https://www.radiomuseum.org/r/gulbransen_60.html


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 Post subject: Re: capacitor block replacement
PostPosted: Mar Tue 06, 2018 2:05 am 
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Joined: Jul Mon 26, 2010 8:30 pm
Posts: 23377
Location: Annapolis, MD
Here's what I see: Everything except mica needs to be replaced

C1 cap block---see diagram on Riders/Gulbransen 1-2
C2 cap block
C3 50pF---mica?
C4 cap block
C5 cap block
C6 cap block
C7 .006
C8 cap block
C9 250pF---mica?
C10 .006
C11 cap block
C12 .003
C13 cap block
C14 cap block
C15 8uF--electrolytic?
C16 6uF--electrolytic?
C17 cap block
no # AC line to ground--use a safety cap (maybe this is C17?)

18, less two micas = 16 to be replaced (or 15 if the line cap is C17)

edit--fixed errors

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-Mark http://pixellany.com

"It's always something". --Gilda Radner (1946 - 1989)


Last edited by pixellany on Mar Tue 06, 2018 3:08 am, edited 1 time in total.

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 Post subject: Re: capacitor block replacement
PostPosted: Mar Tue 06, 2018 2:16 am 
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Joined: Jan Wed 17, 2018 8:59 pm
Posts: 105
Thanks! I plan on replacing the 9 from the block and c-17. Also the electrolytic caps.


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 Post subject: Re: capacitor block replacement
PostPosted: Mar Tue 06, 2018 3:06 am 
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Joined: Jul Mon 26, 2010 8:30 pm
Posts: 23377
Location: Annapolis, MD
C7, C10, and C12 are micas?

Made some corrections to my other post...

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-Mark http://pixellany.com

"It's always something". --Gilda Radner (1946 - 1989)


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