Enclosure not stated
EMU Waveshaper
- Category
- Ring Mod / Synth· Guitar Synth and Misc Signal Shapers
- Price
- see vendor
- Tags
- Guitar Synth and Misc Signal Shapers
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 45 rows
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Check before you build · 3 values the reader of this schematic was not sure of
- 1000pF: schematic says 1000µF, layout says 1000PF; pF fits the circuit
- 1N4950: printed this way twice; may be a 1N4150
- IC1/IC2/IC4 '556': drawn as single op amps, part number as printed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 30 | ||||
| ×1 | 47K | 47k | IC1 pin 3 to ground; read from the schematic by eye | |
| ×1 | 100K | 100k | 2%, IC1 feedback; read from the schematic by eye | |
| ×1 | 1.0M | 1M | Triangle Sym input; read from the schematic by eye | |
| ×1 | 300K | 300k | Triangle Sym node to -V; read from the schematic by eye | |
| ×1 | 100K | 100k | 2%, sawtooth input to IC1; read from the schematic by eye | |
| ×1 | 47K | 47k | pull-up at Q1 base; read from the schematic by eye | |
| ×1 | 22K | 22k | Q1 emitter; read from the schematic by eye | |
| ×1 | 47K | 47k | Q1 emitter to IC2 pin 2; read from the schematic by eye | |
| ×1 | 330K | 330k | IC2 feedback; read from the schematic by eye | |
| ×1 | 39K | 39k | IC2 pin 3 to ground; read from the schematic by eye | |
| ×1 | 560K | 560k | triangle gain/offset; read from the schematic by eye | |
| ×1 | 100K | 100k | IC2 out to sine dist/offset; read from the schematic by eye | |
| ×1 | 1.0K | 1k | IC3 pin 3 to ground; read from the schematic by eye | |
| ×1 | 1.0K | 1k | IC3 pin 2 to ground; read from the schematic by eye | |
| ×1 | 270K | 270k | IC3 pin 5 bias; read from the schematic by eye | |
| ×1 | 47K | 47k | IC4 pin 3 to ground; read from the schematic by eye | |
| ×1 | 100K | 100k | IC4 feedback (sine gain); read from the schematic by eye | |
| ×1 | 100K | 100k | sawtooth node to point C; read from the schematic by eye | |
| ×1 | 300K | 300k | pulse width input pull-up; read from the schematic by eye | |
| ×1 | 47K | 47k | IC5 feedback; read from the schematic by eye | |
| ×1 | 100K | 100k | A to IC6 pin 2; read from the schematic by eye | |
| ×1 | 100 | 100 | IC6 pin 3 to ground; read from the schematic by eye | |
| ×1 | 100K | 100k | IC6 pin 3 to output (hysteresis); read from the schematic by eye | |
| ×1 | 4.7K | 4.7k | Q2 base pull-up; read from the schematic by eye | |
| ×1 | 100K | 100k | IC6 out to Q2 base; read from the schematic by eye | |
| ×1 | 15K | 15k | Q2 collector to IC7; read from the schematic by eye | |
| ×1 | 30K | 30k | IC7 pin 2 to -V; read from the schematic by eye | |
| ×1 | 10K | 10k | IC7 feedback; read from the schematic by eye | |
| ×1 | 2.7K | 2.7k | IC7 feedback, in series with 100pF; read from the schematic by eye | |
| ×1 | 10K | 10k | IC7 pin 3 to ground; read from the schematic by eye | |
| Capacitors 5 | ||||
| ×2 | 0.1uF | 100n | supply bypass +15V and -15V; read from the schematic by eye | |
| ×1 | 22pF | 22p | IC4 feedback; read from the schematic by eye | |
| ×2 | 5pF | 5p | compensation IC6, IC7 (pins 1-8); read from the schematic by eye | |
| ×1 | 100pF | 100p | IC7 feedback with 2.7K; read from the schematic by eye | |
| ×1 | 1000pF | 1n | IC6 pin 3 to output; schematic prints 1000µF but the component layout prints 1000PF; read from the schematic by eye | |
| Diodes 1 | ||||
| ×2 | 1N4950 | 1N4950 | as printed on schematic and layout (possibly meant 1N4150); read from the schematic by eye | |
| Transistors 2 | ||||
| Q1 | 2N5828 | 2N5828 | read from the schematic by eye | |
| Q2 | 2N4121 | 2N4121 | read from the schematic by eye | |
| ICs 7 | ||||
| IC1 | 556 | 556 | op amp as drawn (pins 2,3,6,7,4); read from the schematic by eye | |
| IC2 | 556 | 556 | read from the schematic by eye | |
| IC3 | 3080 | 3080 | OTA; read from the schematic by eye | |
| IC4 | 556 | 556 | read from the schematic by eye | |
| IC5 | 741 | 741 | read from the schematic by eye | |
| IC6 | 748 | 748 | read from the schematic by eye | |
| IC7 | 748 | 748 | read from the schematic by eye | |