Heavenly Red v1.0
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6
Now continue by soldering the MLCC, small SMF/MKT/Wima capacitors then solder the internal trim
pots (
VR1-VR4
). Now finish by soldering the transistors (if not socketed), the bigger MKT/WIMA and
the electrolytic capacitors.
I suggest you now drill the holes in your enclosure so you can use it during the off board wiring. This
PCB is very sensitive to noise! Keep the wires as short as possible and/or use shielding on the input
and output.
Besides the components mentioned in the components table, you will need:
•
2 mono input jacks
.
•
2,1mm DC jack
(isolated).
•
22 gage stranded hook-up wire.
•
2 x LED holders.
This enables you to mount the LEDs in the enclosure.
•
2 x Footswitch 3PDT
(9 pins)
•
Hammond 1590XX
case (or similar) in your favorite color. You can of course experiment
with other enclosures, but measure twice before you start drilling!
Off board wiring
Potentiometers
In the pictures below you see the correct pin numbering of the pots (Alpha 16mm style).
Solder the wires accordingly and it is always a good idea to twist the wires together to create some
extra shielding against external noise. The
rectangle pad
marks
pin 1
.
You can break off the pin I marked with the yellow circle with a small pair of pliers.
Switches
The wiring for the switches is the same as for potentiometers, marking pin 1 with a
rectangle pad
.
SW3 and SW7 form a DPDT, so do not use 2 separate SPDT switches.
There is a small silkscreen error with the boost switch. Where it is marked as “On”, it should be “Off”,
so the switch is marked in reverse.
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