Snap the little metal tags off the pots to mount them flush in the box.
You MUST use some kind of heat sink on the legs of the transistors
when soldering. They aren’t keen on heat. Any more than 3-4
seconds of iron and they’re toast.
Pots mount on the same side as the components.
Give some thought to placement before soldering in your offboard
wires. Extra pads have been added to make it a doddle. Your 9V and
one GND should be on the same side as the components, as your
DC socket is on that side.
The others should all be on the back side of the board, which will place them very close to
the footswitch.
The two separate GND connections near VOL and BIAS
are for your jack sockets.
Non-standard pinout for Q3 is shown above.
2N5306 come in both ECB and EBC pinouts, so you’ll
need to check yours. If you’re subbing a different can then
you’ll need to check the pinout and twist the legs to fit.
BC517 have this pinout >>>>
Oscillation Switch
- you can wire this offboard with any SPDT ON-ON toggle switch. You
can use a DPDT if you want to also wire in a LED to show whether it is engaged or not. You
can even wire it as a separate footswitch (see the Wiring section). Ignore the two holes
above S1-3 - they’re for the dinky board-mount switch which is an option.
MOD!
If you want to get super-freaky you can replace R5 with a pot to control how much
oscillation you’ll get when engaged. Just connect pins 1 and 2 of a pot to the resistor pads.
10KB will work, but you may find smaller values and different tapers give a better useable
sweep. Experiment.
1 2
3
E
C
B
