David Rolo TWIN PEAKS TREMOLO, Руководство по сборке

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2) When you have finished populating the boards, solder all needed outboard wires (not the ones connecting the 2
boards together) already in place leaving enough length to connect to their destination later on.
3) Fit the 2 boards back to back with a piece of cardboard or other insulator between them.
Don’t use anything too thick but also not too thin that component leads could poke through and cause a short.
There are 3 holes where you can fit screws (M2.5 or M3, preferably plastic) that will secure the boards together
with spacers between them.
4) Now connect each opposing hole of the 2 PCB’s together with some wire. I prefer solid core wire but twisted
stranded wire will be OK too. Just watch out for loose strands that could cause a short.
5) Now you can fit the boards inside your enclosure and connect the outboard wires to their corresponding points,
the bypass and Tap switches, LED’s, jacks etc
Now that you have finished assembling the pedal, you can bias it:
1) Turn the DEPTH pot fully counterclockwise, SYMMETRY and TONE in middle position
2) Set T3 and T4 fully counterclockwise
3) Start by measuring the supply voltage at bias point B1
4) Adjust the Offset trimpot T2 until you get the same voltage (about half of the voltage of B1) on bias points B2
and B3. This action will center the LFO signal (originally 0-5V) around the bias voltage of U2.
5) Now adjust T3 and T4 to have a good balance between bass and treble. As you turn clockwise, the optocoupler
gets more current and the signal gets louder. But increasing the current also increases the chance of getting
audible clicks, especially with sharp wave shapes. So it’s best to be conservative and compensate for the volume
with T1.
6) Adjust the volume trim pot T1 to have the same level between effect OFF and effect ON (or any level you like).
That’s it! Now trem’ away ;-)