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Vintage Synth Repair

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Re: [vintagesynthrepair] Alesis QS6.1 output hum

2015-11-15 by Daniel Forró

> caps of equal or greater capacity
>


And equal or greater voltage :-)


Daniel Forro




On Nov 14, 2015, at 1:57 AM, John Karns johnkarns@...  
[vintagesynthrepair] wrote:
> I don't have a QS6, but the power supply caps are the most likely  
> cause of the problem.  They are usually not difficult to replace  
> once you get the synth opened up, and the values of the capacitors  
> are not critical. The rule of thumb is to replace with caps of equal  
> or greater capacity. The only way to find out if they are causing  
> the hum is to replace them. Usually they are not expensive to buy  
> compared to some other types of components such transformers, for  
> example.
>

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