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Tuesday, November 18, 2014

Run Off Groove Peppermill

Here's a nice transparent drive from Runoffgroove.com. Not a ton of headroom apparently, but has a nice bluesy tone. In the layout, Q1 is oriented for a 2N7000, so if you use a BS170 be sure to rotate it 180ยบ.



10 comments:

  1. marking the pinout of the J201 is wrong ......... if using the J201 that marking layout need to turn 180 ° as it is DSG.

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    Replies
    1. have you built this one mate?
      i've built this but seems not working well.
      the red led, is it 5mm or 3mm?

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    2. The LED is there to protect the MOSFET, so either one should work. (A 9v zener would probably be better) I seem to have labeled the pins wrong in the J201, but the orientation of the transistor is correct. It's fixed now.

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    3. Hi, 1N4148 is a good Led replacement on this case? tnks

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    4. No, but a 9v zener would be best. It's there to protect the MOSFET from static, not for clipping or anything.

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    5. Hi, another question, how is the best way to add a simple tone control? Also I wish add hard clipping option switch. Tnks

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  2. Hi, how is the best way to add a simple tone control?

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    Replies
    1. Check out this:

      http://www.muzique.com/lab/swtc.htm

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