Millenium 2 Bypass help

[lawl_rock]

I recently received parts from Small Bear to make my first pedal, and realized that I received a J201 transistor instead of the 1N456 diode I was going to use as the low leakage diode. Is there a reason for this, or was it purely a mistake on their part? Could I use the transistor instead?

[R.G.]

Actually, yes, you can. The J201 is a Junction Field Effect Transistor (JFET), which happens to have a strip of partly-conducting material (the channel) between the source and drain pins. The gate pin sits beside the channel and is isolated from it by the gate being P-type material while the channel is N-type - that is, the channel and gate form a diode, and it happens to be a very low-leakage diode. To use it, short the drain and source pins together. These become the cathode/bar end of the diode. The gate is the anode/arrow end.

[lawl_rock]

Thank you! Looks like I have some more soldering to do

[lawl_rock]

One more question: Regarding the part of the board that connects to +9v, does that mean it needs to be connected to the positive terminal of the battery?

[R.G.]

It connects to the same "+9V" that the circuit does. You may not want it attached directly to the battery, as some circuits use resistor/capacitor filters, etc. You want its power to be turned off by the same switching arrangement - if any - that the circuit uses.

[lawl_rock]

So, for example, the pedal I'm making is the Rocket Fuzz. This means that I should hook it up to where the red lead of the battery connects to the PCB?