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-   -   Bush AC 81 C4/C6 Caps Difficult to Replace (https://www.vintage-radio.net/forum/showthread.php?t=179497)

BrianAllen 28th Apr 2021 6:56 pm

Bush AC 81 C4/C6 Caps Difficult to Replace
 
Good evening all.

There are 2 wax caps C4/0.1 and C6/0.05 on my AC81 that are very difficult to gain access to. Although they look in good condition, should I make the effort to replace them?

C4 is V1 AVC Line Decoupling and C6 is V1 Sg's and Osc Anode Decoupling if this helps.

Brian

PJL 28th Apr 2021 7:25 pm

Re: Bush AC 81 C4/C6 Caps Difficult to Replace
 
C4 is a must replace as it is on a high impedance circuit. C6 should be OK if the SG voltages are good but remember to allow for the loss of AVO loading when checking against the service documentation.

BrianAllen 28th Apr 2021 8:06 pm

Re: Bush AC 81 C4/C6 Caps Difficult to Replace
 
Thank you PJL.

Brian


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