CHAMP ELECTRONICS -" THE VINTAGE VALVE AMP HOSPITAL"

NOTTINGHAM, ENGLAND

 

SERVICING A SELMER CONSTELLATION 20 watt COMBO AMPLIFIER



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I always got the impression that these were a bit of a “budget Selmer"?


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 The Constellation is not one of my favourite Selmer’s, though they still sound pretty good when working OK. Their layout and design always leads them to look a bit untidy….due to the many fly-leads & the “off-chassis” mounting of the output transformer. This is how she looked when first received.


 

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With the help of a glue-gun & some stiff wire, an technician has mounted this cap underneath: to replace a duff section within the original triple smoothing cap.


 

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Board now removed and the faulty triple smoothing cap removed too.


 


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All faulty components now replaced here, along with three individual smoothing caps to replace the original. Triple smoothing caps are pretty hard to find nowadays, although some manufacturers are starting to produce them again, JJ being just one example. However, most customers are quite happy to have the individual caps. Though they don’t look so retro, at least they do the job!


 


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 Underside after component replacement but prior to cleaning.






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And after chemically treated….looks so much better!

 


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New power cable fitted, everything cable-tied & secured correctly too.


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All finished. It’s very hard to make one of these look tidy because of all the fly-leads as previously stated but….hey…she’s working great now! Love the two old RTC “square chassis” drivers. You don’t see many of these nowadays!


 


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