I am building a Dual Loop Switch Box based on the layout from generalguitargadgets.com But, I'm not convinced that the grounding is correct based on the given layout. Would someone take a look at this simple one-page layout and give a go/nogo ruling? I'm inclined to connect Loop A's Send jack's sleeve to the Output jack's Sleeve. But I don't want a wanky ground looping problem. I also believe the LEDs are miss-labeled (LED for Loop A is actually for Loop B); am I correct?
Thanks in advance.
http://www.generalguitargadgets.com/pdf/ggg_sw_loop2c_lo.pdf (http://www.generalguitargadgets.com/pdf/ggg_sw_loop2c_lo.pdf)
I would assume that all sleeves are tied together via a metal box. Wire jumpers are redundant (good when a jack loosens-up mid-show). Also wires for LED returns.
Something as small as a pedal won't have real ground-loop trouble.
There's too many lugs on those switches for my eyes. I'd be inclined to wire-up as-drawn, but without blobbing epoxy on the LEDs yet. If the "wrong" LED lights, easy to swap.
Quote from: PRR on February 17, 2019, 06:09:50 PM
I would assume that all sleeves are tied together via a metal box. Wire jumpers are redundant (good when a jack loosens-up mid-show). Also wires for LED returns.
:icon_redface: I'm sooo stupid. I probably need a nap or some brain food.
Quote from: PRR on February 17, 2019, 06:09:50 PM
Something as small as a pedal won't have real ground-loop trouble.
There's too many lugs on those switches for my eyes. I'd be inclined to wire-up as-drawn, but without blobbing epoxy on the LEDs yet. If the "wrong" LED lights, easy to swap.
Agree--easy to swap, but I'm just lazy. I'll breadboard the LEDs before soldering their wires to the footswitch.
Thanks PRR.
Follow-up. The LEDs are incorrectly labeled in the layout pdf. The top row of the 4PDT lugs enables Loop A.