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 100µ. 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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Nice! Used to have the original one and it was great.
ReplyDeleteDid you build this layout?
DeleteNah. I don't have the need for overdirves. Only fuzzboxes nowadays.
DeleteI'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.
ReplyDeleteAutocorrected TS to talking
Deletewhere is resistor that needs to be 100k? Location on the board example ar10, r11 ect...
ReplyDelete