How to lift Dumbleator clone signal ground?

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itsgiusto
Posts: 29
Joined: Mon Jul 08, 2019 2:35 am

How to lift Dumbleator clone signal ground?

Post by itsgiusto »

I'm interested in making my Dumbleator clone more ground loop-proof. As far as I understand, the fact that the signal ground is earthed makes it very prone to having ground loops when used in conjunction with an amplifier.

I was planning on doing this by taking all places where the signal ground attaches to the chassis, and lifting them, and instead attaching them to some sort of bus. Then I was going to attach the bus to the chassis with the use of a 16 ohm resistor, a forward diode, a reverse diode, and a 0.047uf capacitor, all in parallel. Does that sound like the correct thing to do?
groovtubin
Posts: 1114
Joined: Tue Feb 07, 2006 4:52 am

Re: How to lift Dumbleator clone signal ground?

Post by groovtubin »

just ONE great way is this ( Allan Phillips Carl Ann Amps gave me this) take the ground lug of RETURN volume pot cut ground wire, ADD a 100 ohm resistor from ground lug to ground.works like a CHARM :)
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