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Thursday, January 13, 2022

Fulltone 2B

 Happy 2022, everyone! Here's a buffer/booster from Fulltone. Engaged it's a booster with an interesting controllable germanium soft clipping setup, and when bypassed the diodes and gain control are shorted, creating a buffer. If you're just after the boost and want to skip the buffered bypass, just ignore the two Bypass pads and wire it normally. The original uses a 3PDT still for bypass, but you should be able to get away with a DPDT (just wire the bypass pads to lugs 1 and 2 of a DPDT, LED- to lug 4 and lug 5 to ground). Discussion and schematic over on FSB.






21 comments:

  1. Great site, great work.
    The underside hasn't been reversed.
    :)

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  2. Verified, I put a perf board together with a tl071, socketed the diodes and it sounds good ( I must like my guitar). The diodes are subtle going to do some cork sniffing diode selection later. I also tried a cap with the diodes, seems to smooth off the highs.

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  3. Pengganti dioda 1N750 dan IC AD711 apa?

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  4. What is the replacement for the 1N750 diode and the AD711 IC?

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    Replies
    1. try 1n4732 or another 4.7 V Zener
      and TL071, TL081 or similar single opamp

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    2. yes, it gives more dynamics at min of "dynamics"))
      sorry for my english, but i want to comment too)))

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    3. Okey thank you bro
      I will try it today

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  5. This comment has been removed by the author.

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  6. This comment has been removed by the author.

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  7. is it verified??
    Is there an annoying buzzing/popping sound?

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  8. metal muff, please....from argentina.I'm Rodrigo thanks for yours jobs.

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  9. Verficado!!! Desde Chile.....Muy buen sonido.----- Verified!!! From Chile....Very Good sound.

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  10. Can you explain me how I connect the DPDT switch please?
    I read "just wire the bypass pads to lugs 1 and 2 of a DPDT, LED- to lug 4 and lug 5 to ground"
    What about the lug 6 and 3? or just connecting 1, 2, 4 and 5 is enough?
    Thanks!

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