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Tuesday, 25 March 2014

Shin-Ei FY-2 Companion Fuzz with mods

Did this layout a while back and built it. Where the original FY-2 is sluggish on output level and the overall sound is quite thin and nasal, i noticed a couple of nice mods for the circuit. GGG has added simple one transistor amplifier at the output to deal with the volume issues and I<3Fuzz forum has a thread of people giving the circuit a mid scoop control. This adds a lot of versatility to the circuit. I've also included a series polarity protection. It is pretty damn wild sounding thing with slow attack and the general feel brings thick mushroom cloud to mind. Definitely over the top vintage feel to it.


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18 comments:

  1. Unknown25 March 2014 at 17:51

    So if you add a 'Treble' knop, this could basically be the EQD Terminal fuzz?

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  2. Doron Barness25 March 2014 at 20:07

    Definitely a great pedal. Think of the Jesus and Mary Chain - Psychocandy.

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  3. Sergio31 March 2014 at 12:37

    Would this be possible to implement the Stupid wonderful tone control, in order to have control over high frequencies? If I'd try to do that, should I have to rip off the two 10 uf caps, 10k resistor and level pot? Thank you!

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  4. boratto21 April 2014 at 16:49

    What about use the 2Sc536F?

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    Replies
    1. mirosol21 April 2014 at 16:56

      Those will work fine, but the pinout is different. You need to twist the leg to use them in this layout.
      +m

      Delete
  5. Hello Schmitty13 May 2014 at 11:53

    fuzz1 and fuzz2 wires around the wrong way
    can you post the schematic please so i can verify properly.
    built it with 2n3904's and it doesnt sound as good as some i've heard online, but better than others. sounds way to unbiased for my ears atm.

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  6. Marc28 February 2016 at 16:15

    My god this is loud haha. Built it with 2sc828s first, but had no sound. wasn't sure about the pinout (and out of sockets) so I threw in 2n3904.
    The realized My output wire and level were one row too far up.

    Fixed that and it fired up. Thank goodness I had the volume at 0, cause at 1 it blistering loud. Jesus and Mary Chain indeed, think Psychocandy blasting out of your stereo with your ear next to the speaker. This will be fun :D

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  7. Unknown11 June 2016 at 02:52

    Where does lug 3 of Scoop pot go?

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  8. D_Pan24 August 2016 at 05:56

    How would I go about putting the 47nf on a switch to cut/boost the bass like the Mastotron or Contraband?

    Thanks.

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  9. Unknown11 November 2016 at 03:23

    This comment has been removed by the author.

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  10. Unknown11 November 2016 at 05:01

    https://youtu.be/sugm6qPNrjc heres a clip i just made this. It sounds amazing i got it maxed out in the video.

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  11. villiagers11 November 2016 at 17:57

    Hi, I'm tearing the innards from my GCB-95 and making a shin-ei fuzz wah out of it, so thanks for this layout.

    Would 2N5088 do for a low gain 2N type? I've got about 300 of them and I need to use them up somewhere.

    Cheers

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  12. Quinn30113 February 2019 at 14:53

    Where does scoop 3 go?

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    Replies
    1. OcularDawn13 February 2019 at 16:31

      Scoop 3 is not utilised. It's a variable resistor from the 100n cap to ground.

      Delete
  13. Forester12 July 2019 at 23:07

    built this for a metal player and also chucked a keeley boost into the box the result is staggering He loves it

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  14. D Russ4 March 2022 at 16:12

    I built this with 2N2222 and hot dang it's stupid loud. Sounds great! The mid scoop knob is excellent.

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  15. kenjib2 August 2022 at 00:26

    I am about to build this using 2Sc536F transistors. Does it make sense to only use those for the first two transistors, and then use a more common transistor for the boost mod? What would be best in the third spot: 2n2222? 2n3904? 2n5088? A third 2Sc536F?

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  16. Purple Cat10 January 2024 at 06:12

    i put a 1k in place of the 390ohm resistor and the output volume is MUCH more manageable now. still loud, but not impossible to dial without taking your head off :D

    ReplyDelete