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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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28th Apr 2021, 6:56 pm | #1 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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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 |
28th Apr 2021, 7:25 pm | #2 |
Dekatron
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
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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.
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28th Apr 2021, 8:06 pm | #3 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Bush AC 81 C4/C6 Caps Difficult to Replace
Thank you PJL.
Brian |