These are some build notes for the bongo fury.
Three drums in a 8 hp panel.
The circuits are common twin-T driven oscillators, the LEDs work as nonlinear resistors in one section of the twin-T circuit.
This will probably work well with Andrew's Triad - triple envelope generator.
This is a triple version of the original Bongo drum
Bong0 - Bongo - Drum / VCO build notes
Some pics of the unpopulated board
Fairly common parts.. except the diodes - 5.1V zener
I do have these, but the PCB may not have the room
These are the diodes you want.
the 3 opamps first.
TL072s
100K resistors
the trimpot has been replaced with a 75k
resistor (marked 75k* on PCB)
Caps
100n, C1, C2, C3
I'm using the same on all.
To Be continued....
Links
+ Wiki
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You can find more NLC builds here.
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