Hey folks - going back a decade or so here and found myself with a self-etched egghead that used the old drill template with the battery (you can see it on the left side in the yellow enclosure - I forgot to take a before pic of the seafoam green one I augmented).
Decided since I don't use batteries and having the switch further from the pedals is better than closer to them, I would modify.
I've done this before where I put a jewel lens where the switch went and moved the switch down - the jewel lens has a weird size nut (9/16-24, and half of the ones I got don't even fit that), but this time I had a 3D printer, so I was able to make the proper nut for this thing finally. I also added a holder for the LED in the bolt. Used a yellow, which you can't see well in any picture, but it does look kinda cool...
You can't see the tiny daughter board with the resistors for the LEDs cause I heat shrunk it up and hid it under the power, but it made it so much easier to work 2 LEDs. It's a little messy still, but I did what I could to keep from fussing things up too much in there - it IS an antique at this point, after all, hehe.
The egghead was my first foray into etching boards myself, which... was a lot. lol. The wired pots, the LED that needs a direct connection (plus resistor) to the 9v, the STEREO jack connected to a battery terminal... brought back memories of excitement at trying something new - and succeeding! BUT... I never loved this pedal til now - it might be cause I swapped to humbuckers in my guitars and it finally plays nice with everything. Either way; I'm glad to have it up and working again - even if it is a little messy inside still.
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That looks very cool. I can remember etching this one as well, having got ambitious and doing a bunch of the Etcher's Paradise layouts.