Roger Octavia help

Toastman

New member
Hello guys,
I built a Octavia clone from PedalPCB, worked great until I plugged it into powersupply.
It somehow oscillates with my Uni-Vibe clone (it is slightly better after the uni vibe). And there is this awful noise. Quite unusable...
I tried it with battery, it still oscilattes but it is better...the Uni-Vibe alone works with all my pedals, no hiss or hum.
The Octavia produces slight hiss if you turn off the volume (6 pedals connected to power supply). When I plug both of them into the power supply this happens.


Is it normal with this circuit or did I make a mistake somewhere. Is there any way to fix it/modify it? Or should I just come in terms with it and use only one :(
 
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