Tuesday, 7 November 2017

Guyatone PS-021 Guitar Exciter / Compressor

A vintage pedal from the 80s.
I've removed the flip flop switching system and buffers (thanks Zach for the help).
Hopefully it will fit in a 125B box.
You can find original thread and schematic here.
Updated schematic is available in our Forum section. 
Thanks Dino for his explanatory video.
12/11 Layout Updated! Readded the input buffer as Aion's suggested.


... and the LM13700 version

6 comments:

  1. Replies
    1. not see Volume 2, only 3 and 1

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    2. First - it is a layout. Not a schematic.

      Second - you have three lugs on your volume pot, yes? Lugs 1 and 3 connect to board as pictured. You take a wire to lug 2 and that wire is your output. Thus, the output comes from the pot, not from the board.
      +m

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    3. very thanks for your explaining¡¡

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  2. Nice! Just fixed the bass version for a friend and this is just a perfect effect. Dyna comp to simplified BBE Stinger to BMP tone stack. Sounds just amazing. Aion might be putting a RTS PCB out in a few months and if that'll fit in 1590B, i might get me one of those. If i find the time i may build this layout anyway.

    Had my eye on the schem, but figured i didn't want to take a go at it - as it is huge. Thanks Alex!
    +m

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