How to wire a sovtek smallstone for true bypass

[ghostsauce]

Wow, what a fight that was to find a wiring diagram for this! It's of course a positive ground circuit, making the normal 3pdt wiring diagram useless. I spent way too long looking for that, and had to figure out the board as well... which is fine but I am just not very fast at it.  Anyways, just posting this thread for future people looking for this.

If you've got a black sovtek smallstone:

- 3PDT wiring diagram
- There is a resistor that connects the tip of the input jack to ground. Remove this resistor and set it aside. (Mine was 2M, but some have said theirs was 100k... weird)
- There is a wire & trace that connects the pot to the tip of the input jack, this must be cut.
- The 2nd trace out from the input jack's tip is your board's signal in. Cut it, and attach a wire to the board side of the trace, which will be the green wire (input) in the wiring diagram. Also attach that resistor to this spot and re-connect it to ground once more. (Not sure if this is needed, but it was there before so we are just putting it back into the circuit in the same place, only after the switch.
- Your board ground is easy to find, it connects both jacks at the sleeve and is the giant trace on your board.
- The board output is also easy to find, just find the trace/wire that leads to the tip of the out jack.
- The 9v- power supply won't need to be moved
- The side of the LED that was connected to the switch is the positive side, which will be connected to your 3PDT now.
- I just cut the battery terminal off, but if you are going to use it you will need to remove it and attach it as per the diagram.

Think that about covers it... everything else should be really easy to discern what is what. There will be some extra wires, but they are useless to you now. I believe the green sovteks are very similar, so the above should roughly apply to them as well. Also, there is a slight pause between when you engage the effect for the first time since being plugged in and when the phasing starts, but the signal doesn't cut out or anything... and the pause is only about 2 seconds or so. Not a big deal like I've seen people make of it.

[nocentelli]

I believe the green sovteks are very similar, so the above should roughly apply to them as well.

Really? I thought the Green Sovteks just had a centre-positive (old DOD-style, 1/8" mini jack type) dc socket.

[wavley]

I believe the green sovteks are very similar, so the above should roughly apply to them as well.

Really? I thought the Green Sovteks just had a centre-positive (old DOD-style, 1/8" mini jack type) dc socket.

You're right, 1/8" mini.  I've been using one for years.

[ghostsauce]

The one I have also uses the 1/8", center positive plug.