[sdiy] [AH] Arp Solina with excessive chorus noise

[Eric Frampton]

My rev 2 solina is noisy as hell with the triplevchorus in, and merely noisy as heck without it.

Any folks got suggestions for specific recapping points that might improve the noise floor, or at least get it back to 1976-level quiet?

e

> On Jan 31, 2016, at 2:30 PM, rsdio at audiobanshee.com wrote:
> 
> Just say "no" to premature re-capping.
> 
> On Jan 31, 2016, at 11:21 AM, <tprivitera at nc.rr.com> wrote:
>> I recently picked up a 70's Arp Solina String Ensemble. It has the button on the right cheek block to turn the chorus on/off and it is not the later version with LEDs.
>> 
>> It's in pretty good condition, every function works and it sounds great, but there is, in my opinion, excessive noise and 'swooshing' when the chorus/modulation circuit is engaged.  It is dead silent with the chorus turned off.  Not a big deal when you are playing notes or chords, but enough to be annoying when it's idling.
>> 
>> I downloaded the service manual/schematics and it looks like there are adjustment pots on the modulation boards.  Anyone had one with a similar issue adjust these or can suggest some ideas to reduce the noise?  I will be re-capping the power supply later this week for preventative maintenance, as I do with all my synths, combo organs, etc.
> 
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