Finally got around to tackling this monster...
There is a few schematics floating around for this but I ended up using the one from Madbean.
Finally got around to tackling this monster...
There is a few schematics floating around for this but I ended up using the one from Madbean.
A vintage big box The Worm with some useful improvemnts and mods by Madbean. The power section have been reworked by a voltage doubler and a voltage regulator for 9v to 15v operation. An internal volume trimpot is added. And the unknown original vactrols is replaced by a trio of LDR/LED pair.
Schematic and more information is avaiable HERE.
Schematic is avaiable HERE.
I added a 100ohm protection resistor across the trimpot and the lamp driver transistor (Q1).