Enclosure not stated · 2 knobs
Alpha drum
- Category
- Ring Mod / Synth· Full Synths Drum Synths and Misc Synth
- Price
- see vendor
- Tags
- Full Synths Drum Synths and Misc Synth
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 62 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 35 | ||||
| R1 | 220k | 220k | read from the schematic by eye | |
| R2 | 10k | 10k | read from the schematic by eye | |
| R3 | 2k2 | 2.2k | read from the schematic by eye | |
| R4 | 1M | 1M | read from the schematic by eye | |
| R5 | 22k | 22k | read from the schematic by eye | |
| R6 | 4M7 | 4.7M | read from the schematic by eye | |
| R7 | 220k | 220k | read from the schematic by eye | |
| R8 | 150k | 150k | read from the schematic by eye | |
| R9 | 22k | 22k | read from the schematic by eye | |
| R10 | 100k | 100k | read from the schematic by eye | |
| R11 | 10k | 10k | read from the schematic by eye | |
| R12 | 220k | 220k | read from the schematic by eye | |
| R13 | 2k2 | 2.2k | read from the schematic by eye | |
| R14 | 4k7 | 4.7k | read from the schematic by eye | |
| R15 | 4k7 | 4.7k | read from the schematic by eye | |
| R16 | 100k | 100k | read from the schematic by eye | |
| R17 | 100k | 100k | read from the schematic by eye | |
| R18 | 10k | 10k | read from the schematic by eye | |
| R19 | 220k | 220k | read from the schematic by eye | |
| R20 | 470k | 470k | read from the schematic by eye | |
| R21 | 4M7 | 4.7M | read from the schematic by eye | |
| R22 | 4M7 | 4.7M | read from the schematic by eye | |
| R23 | 4M7 | 4.7M | read from the schematic by eye | |
| R24 | 1M2 | 1.2M | read from the schematic by eye | |
| R25 | 1M2 | 1.2M | read from the schematic by eye | |
| R26 | 1M2 | 1.2M | read from the schematic by eye | |
| R27 | 301k | 301k | 1%; read from the schematic by eye | |
| R28 | 301k | 301k | 1%; read from the schematic by eye | |
| R29 | 301k | 301k | 1%; read from the schematic by eye | |
| R30 | 301k | 301k | 1%; read from the schematic by eye | |
| R31 | 301k | 301k | 1%; read from the schematic by eye | |
| R32 | 301k | 301k | 1%; read from the schematic by eye | |
| R33 | 301k | 301k | 1%; read from the schematic by eye | |
| R34 | 301k | 301k | 1%; read from the schematic by eye | |
| R35 | 301k | 301k | 1%; read from the schematic by eye | |
| Capacitors 13 | ||||
| C1 | 4.7uF | 4.7u | radial, 16V; read from the schematic by eye | |
| C2 | 100n | 100n | ceramic disc; read from the schematic by eye | |
| C3 | 3n | 3n | read from the schematic by eye | |
| C4 | 470p | 470p | read from the schematic by eye | |
| C5 | 10n | 10n | read from the schematic by eye | |
| C6 | 100n | 100n | read from the schematic by eye | |
| C7 | 4.7uF | 4.7u | radial, 16V; read from the schematic by eye | |
| C8 | 100n | 100n | 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 | 100n | 100n | read from the schematic by eye | |
| Diodes 3 | ||||
| D1 | 1N34A | 1N34A | germanium; read from the schematic by eye | |
| D2 | 1N914 | 1N914 | or equiv.; read from the schematic by eye | |
| D3 | 1N914 | 1N914 | or equiv.; read from the schematic by eye | |
| ICs 7 | ||||
| IC1 | LM324 | LM324 | read from the schematic by eye | |
| IC2 | CA3080 | CA3080 | OTA; read from the schematic by eye | |
| IC3 | CD4046 | CD4046 | PLL; read from the schematic by eye | |
| IC4 | CD4040 | CD4040 | read from the schematic by eye | |
| IC5 | 2732 | 2732 | 4K x 8 EPROM, programmed with drum sample; read from the schematic by eye | |
| IC6 | CD4049 | CD4049 | read from the schematic by eye | |
| IC7 | CD4049 | CD4049 | read from the schematic by eye | |
| Potentiometers 2 | ||||
| Tune | B100K | B100k | Potentiometer | VR2; read from the schematic by eye |
| Volume | B100K | B100k | Potentiometer | VR3; read from the schematic by eye |
| Trimmers 1 | ||||
| Sensitivity | 500k | 500k | VR1; read from the schematic by eye | |
| Other 1 | ||||
| ×1 | Piezo disc | PIEZO DISC | sensor, approx. 1 inch; read from the schematic by eye | |