Enclosure not stated · 3 knobs
Electro Harmonix Electric Mistress 2
Based on the Electro-Harmonix Electric Mistress· 5 other boards clone it
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- Flanger· Flangers
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- Flangers
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 57 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 24 | ||||
| ×1 | 270K | 270k | input bias; read from the schematic by eye | |
| ×4 | 470R | 470 | one into the second 4558 stage, two at the SAD1024 outputs, one in the feedback path; read from the schematic by eye | |
| ×1 | 4k7 | 4.7k | read from the schematic by eye | |
| ×1 | 5k6 | 5.6k | read from the schematic by eye | |
| ×2 | 6K2 | 6.2k | one in series with the 5uf, one feeding the zener; read from the schematic by eye | |
| ×1 | 12K | 12k | read from the schematic by eye | |
| ×2 | 100K | 100k | one to the bias rail, one to the SAD1024 input from the Bias Trim; read from the schematic by eye | |
| ×3 | 10K | 10k | SAD output load, LFO feedback, 311 output pull-up; read from the schematic by eye | |
| ×1 | 13K | 13k | dry mix; read from the schematic by eye | |
| ×2 | 8K2 | 8.2k | one wet mix (drawn 8k2), one in the LFO reference divider; read from the schematic by eye | |
| ×1 | 510R | 510 | output; read from the schematic by eye | |
| ×2 | 62K | 62k | one to the SAD bias line, one at the 2N5087 base; read from the schematic by eye | |
| ×1 | 10R | 10 | clock supply; read from the schematic by eye | |
| ×1 | 750R | 750 | battery eliminator input; read from the schematic by eye | |
| ×2 | 200K | 200k | bias divider; read from the schematic by eye | |
| ×1 | 1K | 1k | +7.5V bias; read from the schematic by eye | |
| ×2 | 39K | 39k | LFO divider and Filter Matrix; read from the schematic by eye | |
| ×1 | 30K | 30k | LFO; read from the schematic by eye | |
| ×2 | 3K9 | 3.9k | LFO integrator input and Clock Trim wiper; read from the schematic by eye | |
| ×1 | 47K | 47k | LFO output; read from the schematic by eye | |
| ×1 | 27K | 27k | LFO output; read from the schematic by eye | |
| ×1 | 24K | 24k | LFO divider; read from the schematic by eye | |
| ×1 | 33K | 33k | clock VCO; read from the schematic by eye | |
| ×1 | 1M2 | 1.2M | clock VCO; read from the schematic by eye | |
| Capacitors 15 | ||||
| ×1 | .039uf | 39n | input; read from the schematic by eye | |
| ×3 | .047uf | 47n | filter feedback, feedback leg, output; read from the schematic by eye | |
| ×1 | .001uf | 1n | read from the schematic by eye | |
| ×1 | 5uf | 5u | electrolytic; read from the schematic by eye | |
| ×2 | .1uf | 100n | one SAD input coupling, one electrolytic in the clock VCO; read from the schematic by eye | |
| ×1 | .0022uf | 2.2n | read from the schematic by eye | |
| ×1 | .022uf | 22n | dry path; read from the schematic by eye | |
| ×1 | .082uf | 82n | read from the schematic by eye | |
| ×1 | .0033uf | 3.3n | read from the schematic by eye | |
| ×1 | 22uf | 22u | electrolytic, regulator base; read from the schematic by eye | |
| ×1 | 10uf | 10u | electrolytic, +7.5V bias; read from the schematic by eye | |
| ×1 | 100uf | 100u | electrolytic, supply; read from the schematic by eye | |
| ×2 | 33uf | 33u | 10V electrolytics back to back (non-polar) in the LFO integrator; read from the schematic by eye | |
| ×1 | 1uf | 1u | electrolytic; read from the schematic by eye | |
| ×1 | 47p | 47p | clock VCO; read from the schematic by eye | |
| Diodes 4 | ||||
| ×3 | 1N4148 | 1N4148 | read from the schematic by eye | |
| ×1 | 1N4001 | 1N4001 | clock supply; read from the schematic by eye | |
| ×1 | 1N965B | 1N965B / 15V | zener, supply reference; read from the schematic by eye | |
| ×1 | Diode | DIODE | no part number given; above the 62K at the 2N5087 base; read from the schematic by eye | |
| Transistors 2 | ||||
| ×1 | 2N5088 | 2N5088 | NPN, series regulator; read from the schematic by eye | |
| ×1 | 2N5087 | 2N5087 | PNP, clock VCO current source; read from the schematic by eye | |
| ICs 5 | ||||
| ×1 | 4558 | 4558 | dual op amp, input and filter stages; read from the schematic by eye | |
| ×1 | SAD1024A | SAD1024A | BBD; read from the schematic by eye | |
| ×1 | 324 | 324 | quad op amp: bias buffer, LFO and filter-matrix buffer; read from the schematic by eye | |
| ×1 | 311 | 311 | comparator, clock VCO; read from the schematic by eye | |
| ×1 | 4013 | 4013 | dual flip-flop, clock phase split; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Feedback | 10K | 10k | Potentiometer | read from the schematic by eye |
| Rate | 1M | 1M | Potentiometer | read from the schematic by eye |
| Range | 100K | 100k | Potentiometer | read from the schematic by eye |
| Trimmers 3 | ||||
| Bias Trim | 100K | 100k | read from the schematic by eye | |
| Feedback Trim | 10K | 10k | read from the schematic by eye | |
| Clock Trim | 100K | 100k | author notes doubt about how it is wired; read from the schematic by eye | |
| Switches 1 | ||||
| Filter Matrix | DPDT | DPDT | Flange / Filter Matrix; read from the schematic by eye | |
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