If we ground the enclosure it will act like a shield. Ungrounded the shielding effect is much smaller.
If the enclosure was painted, the area arround the teeth washer needs to be free of insulating paint.
- long leg: +
- short leg: –
If not already happened, remove the nuts and the teeth washers from the rotary switches!
The rotary switches are installed correct, if the small plastic pins of the switches slightly stick out of the front of the enclosure!
If all pots and switch fit, the ferrules (nuts) of the 1/4″-Jacks can be screwed to the enclosure.
The pots and switches were just soldered to the PCB with one joint each. Now those parts need to be aligned perfectly to the enclosure/PCB, so the stress on the PCB gets minimized.
To do that: reheat the single set solder joint on each pot (one after the other) while pulling the shaft up and therefore the whole pot against the inner side of the enclosure front.
Next: Insert 3x TL074, 1x TC7662B. Align correctly!
Now the wiring of the Bassboost-Ports/Send-Boost-Ports (depending of the Version you choose) gets done:
- switchable Bassboost: cables to the PINs within the red circle
- switchable Send-Boost: cables to the PINs within the yellow circle
It is not possible to switch both functions at the same time! You got to choose one Version.
Hint: If needed a small hole can be drilled in order to be able to set the SEND-BOOST-TRIMMER without removing the lid.
If not needed, set the “SEND-BOOST-TRIMMER” to minimum (7 o’clock). In this setting the gain is 1. (same volume as input level)
Close the lid. Done!