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Saturday, 12 July 2014

Vox V810 Valve-Tone

Yup. Vox made TS. I omitted the overly complex  power supply section and transistor based LED operation. Input and output buffers are 2SC2389 in the original units. You could also use those instead of 2N5088/2N5089. Just mind the pinout. Schematic i have has the output pulldown resistor at 1K, which seems way too small for me. I left that at 100K, like we find in some other TS derivatives. You could, of course, try the 1K in that position. It could also work as the output cap in most Vox pedals is also ridiculous 100ยต. The high pass filter the output cap and that resistor creates has roll off frequency of 0,1-1Hz, depending on the value between 1K and 100K, so i don't think that value will affect the sound at all. Either way. It's so lightly modified TS, that it may be more preferable unit to some when compared against the green classic.



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6 comments:

  1. Unknown12 July 2014 at 16:05

    Nice! Used to have the original one and it was great.

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    Replies
    1. Zack G2 April 2016 at 22:48

      Did you build this layout?

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    2. Unknown11 June 2016 at 13:44

      Nah. I don't have the need for overdirves. Only fuzzboxes nowadays.

      Delete
  2. Zack G19 May 2017 at 15:50

    I've wanted to build this since it was posted but was always too afraid to try an unverified layout. Anyway I finally tried it and it works so you can tag it! I had to use a c500k for the gain which made the sweep a little weird. I forget, if I reverse it will it become a log pot but with a backwards rotation? Anyway, it sounds good though, a nice talking clone. Sounds like it has lower gain but I haven't tested it out on a real amp yet, just a tiny practice amp.

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  3. Fat Basturd27 November 2018 at 04:01

    where is resistor that needs to be 100k? Location on the board example ar10, r11 ect...

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