Tuesday, 13 October 2020

JHS 3 Series Overdrive

 Got some request for Overdrive and Distortion in the the new JHS 3 range. Was a bit hesistant at first since those are basically a Tubescreamer and a Rat with some simple mods....not "mostly own designed";-).

First up a Tubescreamer....sorry JHS 3 Series Overdrive.



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9 comments:

  1. Ivan Delgado19 November 2020 at 05:23

    I´m going to build this as soon as i finish college, i hear the demos and sounded good, can i request the chorus?

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  2. brain11 November 2021 at 14:42

    Caught a few things comparing to the JHS/PedalPCB schematic... I think there are supposed to be cuts at L4 and N9. Also, I think the 1k in column 14 should be a 10k that connects pins 6 & 7 on the IC. Still haven't gotten this one working right so I can't verify it, but I'm gonna play around with it some more tomorrow. Thanks for the layout!!

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    Replies
    1. Elijah-Baley11 October 2022 at 17:07

      I didn't build this, but I found the same mistake brain said. The cut in L4 is there, but is barely visible. Solved that I can't see why it should'n work.
      I just add, though that is not a problem, the resistors for the Vref should be 47k (10k in the layout, now, the one near Q1 and the one near the CLR) and the filter cap there should be 10uF, but the 47uF in the layout could be even better.

      Delete
    2. Elijah-Baley11 October 2022 at 17:13

      This comment has been removed by the author.

      Delete
  3. Ian10 March 2022 at 18:15

    Whatever happened to this? I'm looking for a 3 knob TS style with a switch to go into my plumes box...

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  4. wawan14 February 2024 at 09:36

    This pedal veryfied ?

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  5. Bboy13 October 2026 at 15:14

    This layout is garbage….don’t waste your time!

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  6. Tom K14 October 2026 at 19:05

    i have build this with some of the recommended changes -made the cut at 9-N, changed the 47uf to 10uf, the 1k resister to 10k and also threw a 100nf cap parallel to the 100uf cap in row A+B in column 8 for good measure and better power filtering - the resistor for the vref can stay at 10k since is is part of the power filtering and seems to form some kind voltage divider with another 10k resister (i forgot which one) -and with all the changes it works fine now! if the layout gets updated it can be considered as verified. By the way- the pedal is based on the HAO Rumble M.O.D. ( i assume the NUX steel singer as well) -of course it has OD-1/tubescreamer genes like a myriad of other pedals.. thanks for the layout !

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  7. Tom K14 October 2026 at 23:00

    and -as mentioned before by Elijah-Baley- there is a cut at L4 and the cuts at B17 and C17 are also not so visible

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