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Old 17th March 2021, 08:22 PM
Damien Damien is offline
Junior Member
 
Join Date: Mar 2021
Location: Howden, East Yorkshire,UK
Posts: 24
Default Re: Phono 3 noise issues

Hi Andy

Thanks for the offer but the difference in design is so small there seems little point building a III.

Glad to hear you’ve been inspired to do another yourself though

The latest is that the 150uF caps arrived & fitted in the PSU & phono power input.

As they were sold in pairs I also fitted the spare in C3 position having shorted R4.

Slight reduction in the mains hum but as I said before it wasn’t audible at anything like sensible listening levels.

I,ll try & stop fiddling & enjoy listening for now but wil no doubt come back to John’s resistor suggestions & the phono III RIAA tweak later.

Thanks for everyone’s suggestions.

Damien
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