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Diy Fuzz

Discussion in 'Burnt Fingers DIY Effects' started by ce24, Nov 30, 2020.

  1. ce24

    ce24 Poster Extraordinaire

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    So i ordered a kit years ago and never built it....lost the board found the parts, germanium transistors.....then found this that matched my parts list. Can you see anything wrong here?
    I feel good about my parts being correctly placed. I have a hammond box ordered and the jacks and pots ready to go. Thanks for any input. I think its a little bear fuzzface. Appears to be positive ground. I did a quick hook up outside the box to test it....but i realized i made it negative ground.....oooops ...did i blow it up?
    Cheers
    image.jpg CCC23933-1197-4744-88B4-BD41D485F273.png
     
    Last edited: Nov 30, 2020
  2. tubejockey

    tubejockey Tele-Holic

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    I don't see a protection diode on that board so yes, you may have blown it up.
     
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  3. ce24

    ce24 Poster Extraordinaire

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    Just the germaniums or other stuff?
    Thanks.
     
  4. Neener

    Neener Tele-Holic

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    The main concern would be the Ge Trannies...the others stuff is least likely to "blow" per se, and also easier to replace than the Ge

    Im no expert tho
     
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  5. tubejockey

    tubejockey Tele-Holic

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    Electrolytic capacitors can handle a small voltage reverse polarized without blowing up. Just don't put a large voltage on them reversed or they come apart like a confetti cannon.
     
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  6. ce24

    ce24 Poster Extraordinaire

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    9v would be considered small right? They are not bulging or otherwise deformed. They look normal.
    Thanks for the replies guys.
     
  7. monkeybanana

    monkeybanana Tele-Holic

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    Did the seller cherry pick the transistors for you? I ask this because the values are all stock.

    If not I highly recommend breadboarding a Fuzz Face circuit first to bias it correctly. Sometimes you need to bump the 33k resistor up or down to get the transistors to turn on. Then you can dial in the 8k2 resistor to taste.

    The 470 resistor can be increased for more volume

    Just putting this out there in case you wire it up and it doesn’t make a sound.

    If you already knew this I’ll give you your money back :)
     
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  8. Neener

    Neener Tele-Holic

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    A quick 9v into a fuzz face your prob ok...

    But like he^ said, it's always fun to breadboard before hand...

    And to know which has higher Hfe
     
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  9. ce24

    ce24 Poster Extraordinaire

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    Yes they were specifically labelled q1 and q2 i have the values for ordering new ones.
    I will reverse the 9v wires and see if it toasted....
     
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  10. Neener

    Neener Tele-Holic

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    A little hint for future projects, there are suggested values for Q1 and Q2 all over the internet. Take a look at some of the numerous threads/articles written on the subject and experiment.

    Finding exact hfe values for Germaniums can be a challenge sometimes. Good luck, happy soldering :)
     
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  11. ce24

    ce24 Poster Extraordinaire

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    Hey Neener,,, thanks for the help.....it didnt blow the Ger. Trannies...it works perfect. Thanks for the help.
     
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  12. ce24

    ce24 Poster Extraordinaire

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    Thanks for the help guys....the ger. Trannies are still good...got it working sounds great....
     
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  13. Neener

    Neener Tele-Holic

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    yay, that's a good feeling!
     
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