Sunday 23 July 2023

Electro Harmonix Doctor Q - Vintage

 Layout based on the old version from the 70s. Note that this one is really picky about op amp selection so be prepared for some socketing...



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2 comments:

  1. andy24 July 2023 at 14:06

    hello everyone, here is a gerber for those who want to use it, the tagboard has approximate measurements of 100mmx100mm
    hug and good week

    https://www.pcbway.com/project/shareproject/TAGBOARD_FOR_PEDAL_PROJECT_tagboardeffects_100mmx100mm_e6d16693.html

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  2. Itchyfoot26 July 2023 at 19:48

    I'm guessing 'switch' goes to 3. However, the switch does on/off - I'd bet its not supposed to. Used BC550B and 5532. Sensitivity doesn't seem to do anything. I'll give it a good looking over tomorrow but given limited knowledge, I don't expect much.

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