Enclosure not stated · 2 knobs
Zombie Chorus MN3207 Based
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- Vibrato / Chorus· Chorus
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- see vendor
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- Chorus
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 26 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×2 | 1M | 1M | input pulldown and bias; drawing gives (10M) as an alternative; read from the schematic by eye | |
| ×5 | 47K | 47k | U2A feedback, three in the output filter, LFO feedback to U1A; read from the schematic by eye | |
| ×5 | 100K | 100k | U2A to bias, MN3207 output pulldown, output pulldown, U1A feedback, CD4046 pin 12; read from the schematic by eye | |
| ×2 | 4K7 | 4.7k | bias trim and Speed pot to ground; read from the schematic by eye | |
| ×5 | 10K | 10k | dry/wet mix feedback, output series, two in the LFO bias divider, Depth wiper to CD4046; read from the schematic by eye | |
| ×1 | 100R | 100 | supply filter; read from the schematic by eye | |
| ×1 | 4M7 | 4.7M | Speed wiper to U1B; read from the schematic by eye | |
| ×1 | 68K | 68k | CD4046 pin 11; read from the schematic by eye | |
| Capacitors 9 | ||||
| C1 | 10n | 10n | LFO integrator; read from the schematic by eye | |
| ×1 | 100n | 100n | input; drawing gives (1n) as an alternative; read from the schematic by eye | |
| ×3 | 10u | 10u | electrolytic; read from the schematic by eye | |
| ×1 | 3.3uF | 3.3u | electrolytic, VGG; read from the schematic by eye | |
| ×3 | 1n | 1n | one in the output filter, two on CD4046 pins 6-7; read from the schematic by eye | |
| ×1 | 2n2 | 2.2n | U2B filter; read from the schematic by eye | |
| ×1 | 220p | 220p | U2B filter; read from the schematic by eye | |
| ×1 | 1u | 1u | electrolytic, output; read from the schematic by eye | |
| ×1 | 470u | 470u | electrolytic, supply; read from the schematic by eye | |
| ICs 4 | ||||
| U1 | TL062 | TL062 | LFO (U1A, U1B); read from the schematic by eye | |
| U2 | TL062 | TL062 | input buffer and output filter (U2A, U2B); read from the schematic by eye | |
| ×1 | MN3207 | MN3207 | 1024-stage BBD; read from the schematic by eye | |
| ×1 | CD4046 | CD4046 | PLL VCO used as BBD clock; read from the schematic by eye | |
| Potentiometers 2 | ||||
| Speed | 100K | 100k | Potentiometer | read from the schematic by eye |
| Depth | 100K | 100k | Potentiometer | read from the schematic by eye |
| Trimmers 2 | ||||
| Bias | 10K | 10k | set about 5.2V; read from the schematic by eye | |
| VGG | 100K | 100k | set 8.36V (VDD x 14/15); read from the schematic by eye | |
| Switches 1 | ||||
| Clone Mode | SPST | SPST | switches one of the 1n VCO caps in or out; read from the schematic by eye | |