Enclosure not stated · 5 knobs
Revolution Deux Invading Cannibal Ladybird
Based on the Invading Cannibal Ladybirds· 1 other board clones it
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- freestompboxes.org trace
From the vendor
Fred Briggs' breadboard noisemaker that mashes together three circuits: an LM386 fuzz taken from the Experimentalists Anonymous Parallel Universe (with Starve and Oscillate switches and a Freq pot), a Big Muff tone control, and Allesz's lo-fi PT2399 delay from a freestompboxes.org circuit contest, with red LED clipping on the delay input. It makes screaming, oscillating, feedback and beeping sounds, almost a synth; the guitar's volume knob is the fuzz gain control.
The author says some values need tweaking and it could do with an output buffer. Adding modulation to the delay time (a sequencer or LFO) makes it wilder.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 37 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this schematic was not sure of
- Hand-drawn notebook page photographed at an angle; the IC pin connections are hard to follow.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| R1 | 2.2K | 2.2k | starve; read from the schematic by eye | |
| R2 | 220 | 220 | read from the schematic by eye | |
| R3 | 470 | 470 | read from the schematic by eye | |
| R4 | 47K | 47k | tone; read from the schematic by eye | |
| R5 | 39K | 39k | tone; read from the schematic by eye | |
| R6 | 15K | 15k | read from the schematic by eye | |
| R7 | 15K | 15k | read from the schematic by eye | |
| R8 | 68K | 68k | read from the schematic by eye | |
| R9 | 15K | 15k | read from the schematic by eye | |
| R10 | 15K | 15k | read from the schematic by eye | |
| Capacitors 15 | ||||
| C1 | 100n | 100n | input; read from the schematic by eye | |
| C2 | 10u | 10u | electrolytic, gain; read from the schematic by eye | |
| C3 | 470n | 470n | read from the schematic by eye | |
| C4 | 4.7u | 4.7u | electrolytic; read from the schematic by eye | |
| C5 | 10n | 10n | tone; read from the schematic by eye | |
| C6 | 22n | 22n | tone; read from the schematic by eye | |
| C7 | 100n | 100n | read from the schematic by eye | |
| C8 | 22n | 22n | read from the schematic by eye | |
| C9 | 100n | 100n | read from the schematic by eye | |
| C10 | 100n | 100n | read from the schematic by eye | |
| C11 | 100n | 100n | read from the schematic by eye | |
| C12 | 100n | 100n | read from the schematic by eye | |
| C13 | 100u | 100u | electrolytic, power filter; read from the schematic by eye | |
| C14 | 100n | 100n | power filter; read from the schematic by eye | |
| C15 | 100n | 100n | output; read from the schematic by eye | |
| ICs 3 | ||||
| IC1 | LM386 | LM386 | read from the schematic by eye | |
| IC2 | PT2399 | PT2399 | delay; read from the schematic by eye | |
| IC3 | 78L05 | 78L05 | regulator; read from the schematic by eye | |
| Potentiometers 5 | ||||
| Freq | B5K | B5k | Potentiometer | read from the schematic by eye |
| Tone | B100K | B100k | Potentiometer | read from the schematic by eye |
| Feedback | B470K | B470k | Potentiometer | read from the schematic by eye |
| Time | 100K | 100k | Potentiometer | read from the schematic by eye |
| Mix | B100K | B100k | Potentiometer | read from the schematic by eye |
| Switches 2 | ||||
| Starve | SPDT | SPDT | read from the schematic by eye | |
| Oscillate | SPST | SPST | read from the schematic by eye | |
| LEDs 2 | ||||
| LED1 | LED | LED | red, clipping; read from the schematic by eye | |
| LED2 | LED | LED | red, clipping; read from the schematic by eye | |
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