Insulated vs noninsulated input jacks

Discussion in 'Shock Brother's DIY Amps' started by alathIN, Mar 22, 2019.

  1. alathIN

    alathIN Tele-Holic

    Oct 25, 2017
    What determines whether an input jack needs to be insulated from the chassis or not?

    For my standalone preamp/reverb/vibrato thing, I'm insulating the jacks that connect to the effects loop send and return to avoid creating a ground loop between the amp and the standalone thing. The input and output jacks ground through a ground lift circuit, that does connect to chassis ground, but there's no direct connection between the loop jacks and the chassis.

    But as yet, I don't have insulating shoulder washers on the direct instrument input jack.

    Do I need to?
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