Yamaha CS80

Surely overkill --why not just replace filter caps?
David
On 23/12/2008, at 7:13 AM, rj krohn wrote:

> i cannot see how running a cs-80 on a variac would be a bad idea. it  
> seems very sensible.
>
> i have heard that one of the issues that some of the 60's valve  
> limiters had(fairchild,ba-6a,etc)was that the input transformer put  
> out a higher than spec-ed voltage, which apparently resulted in a  
> great tone, bbut also shorter lifespan of tubes as well as actual  
> units. when brought down to  specified voltage, they apparently run  
> much better. i have several units that power up just fine on PSU's  
> that are slightly below design voltage, and run better on  
> them(cheaper moogs). should we all be making the switch for the life  
> of the machines? assuming it works properly, could running a cs-80  
> at 105-110VAC be a bad idea? -rj
>
> --- On Mon, 12/22/08, Quazimodo <noddyspuncture@...> wrote:
> From: Quazimodo <noddyspuncture@...>
> Subject: [yamahacs80] CS80 powering up question...
> To: yamahacs80@yahoogroups.com
> Date: Monday, December 22, 2008, 7:11 AM
>
> Hi guys,
>
> I have recently managaed to fix all my faulty on my CS80, and have
>
> talked to quite a few people about my faults and symptoms along the
>
> way. A big thanks to a couple of them who pop along here now and  
> then!!
>
> It has taken me just about a year - and I found out quite a lot.
>
> One thing that has been sitting at the back of my mind is the fact
>
> that most component failure happens when the unit is switched on. The
>
> surge of power or whatever will take out any weak components first..
>
> (or even contribute to shortening component life..?) I heard a lot of
>
> engineers use a power transformer on which they can slowly wind up the
>
> voltage, checking things as they do - so under *fault conditions* key
>
> components won't instantly blow, and there is a chance reducing the
>
> volts if a symptom shows itself as the voltage is increased.
>
> Now, my question is - would it make sense to have your CS80 on the end
>
> of one of these power transformers constantly.. .? that way, even when
>
> all is well and working fine, you can ease to power on gently whenever
>
> you turn her on - thus hopefully, prolonging component life..??
>
> Would this be an idea worth considering?
>
> Cheers, and Merry Christmas to all.
>
> TOM
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