Enclosure not stated · 4 knobs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 47 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this schematic was not sure of
- BC547/BC548: labels in the clock stack are ambiguous between the middle and bottom transistors
- Op amp sections grouped into chips by pin numbers; count of 4558 packages (3) inferred
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 20 | ||||
| ×4 | 1k | 1k | read from the schematic by eye | |
| ×5 | 10k | 10k | read from the schematic by eye | |
| ×7 | 30k | 30k | read from the schematic by eye | |
| ×3 | 470k | 470k | read from the schematic by eye | |
| ×2 | 150k | 150k | read from the schematic by eye | |
| ×7 | 100k | 100k | read from the schematic by eye | |
| ×2 | 82k | 82k | read from the schematic by eye | |
| ×1 | 120k | 120k | regen; read from the schematic by eye | |
| ×2 | 2.4k | 2.4k | read from the schematic by eye | |
| ×1 | 7.5k | 7.5k | read from the schematic by eye | |
| ×1 | 5.1k | 5.1k | read from the schematic by eye | |
| ×1 | 4.7k | 4.7k | LFO to Sweep pot; read from the schematic by eye | |
| ×1 | 15k | 15k | read from the schematic by eye | |
| ×1 | 1M | 1M | width/LFO; read from the schematic by eye | |
| ×1 | 27k | 27k | read from the schematic by eye | |
| ×1 | 33k | 33k | clock; read from the schematic by eye | |
| ×1 | 3.3k | 3.3k | clock; read from the schematic by eye | |
| ×1 | 330 | 330 | clock; read from the schematic by eye | |
| ×1 | 68k | 68k | clock; read from the schematic by eye | |
| ×2 | 22k | 22k | clock; read from the schematic by eye | |
| Capacitors 12 | ||||
| ×5 | 0.1uF | 100n | read from the schematic by eye | |
| ×1 | 33nF | 33n | read from the schematic by eye | |
| ×2 | 3.3nF | 3.3n | read from the schematic by eye | |
| ×2 | 2.2uF | 2.2u | electrolytic; read from the schematic by eye | |
| ×1 | 15nF | 15n | regen; read from the schematic by eye | |
| ×1 | 150pF | 150p | read from the schematic by eye | |
| ×2 | 6.8nF | 6.8n | read from the schematic by eye | |
| ×2 | 10nF | 10n | read from the schematic by eye | |
| ×2 | 15uF | 15u | electrolytic, back to back in LFO; read from the schematic by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the schematic by eye | |
| ×1 | 100pF | 100p | read from the schematic by eye | |
| ×1 | 62pF | 62p | clock; read from the schematic by eye | |
| Diodes 1 | ||||
| ×2 | 1N4148 | 1N4148 | antiparallel in output mixer feedback; read from the schematic by eye | |
| Transistors 3 | ||||
| ×1 | BC557 | BC557 | clock oscillator; read from the schematic by eye | |
| ×1 | BC547 | BC547 | clock oscillator; labels BC547/BC548 sit between two stacked transistors, so which is which is unclear; read from the schematic by eye | |
| ×2 | BC548 | BC548 | clock oscillator; read from the schematic by eye | |
| ICs 4 | ||||
| ×1 | NE5532 | NE5532 | input buffer and filter (two sections labeled NE5532, though the note says all op amps are 4558); read from the schematic by eye | |
| ×3 | 4558 | 4558 | dual op amps: filter pair, LFO pair, manual buffer + output mixer; read from the schematic by eye | |
| ×1 | SAD1024 | SAD1024 | BBD; read from the schematic by eye | |
| ×1 | 4013 | 4013 | clock divider; read from the schematic by eye | |
| Potentiometers 4 | ||||
| Regen | B50k | B50k | Potentiometer | LIN; read from the schematic by eye |
| Sweep | A500k | A500k | Potentiometer | Log; read from the schematic by eye |
| Manual | 50k | 50k | Potentiometer | no taper given; read from the schematic by eye |
| Width | B50k | B50k | Potentiometer | Lin; read from the schematic by eye |
| Trimmers 3 | ||||
| ×1 | 22k | 22k | BBD output balance; read from the schematic by eye | |
| ×1 | 5k | 5k | BBD bias; read from the schematic by eye | |
| ×1 | 500k | 500k | clock; read from the schematic by eye | |