Enclosure not stated
Vox and Guyatone 1904 Wah
Based on the Vox and Guyatone 1904 Wah
- Category
- Wah / Envelope· Filters Wahs and VCFs
- Price
- see vendor
- Tags
- Filters Wahs and VCFs
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 29 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this schematic was not sure of
- R10: value written over itself, reads like 33K but could be 22K
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| R1 | 47K | 47k | read from the schematic by eye | |
| R2 | 470K | 470k | read from the schematic by eye | |
| R3 | 470K | 470k | read from the schematic by eye | |
| R4 | 470K | 470k | drawn twice: the 4.7K LED resistor is also labeled R4; read from the schematic by eye | |
| R4 | 4.7K | 4.7k | LED resistor; the drawing reuses R4 (clash with the 470K R4); read from the schematic by eye | |
| R5 | 150K | 150k | read from the schematic by eye | |
| R7 | 47K | 47k | read from the schematic by eye | |
| R8 | 3.3M | 3.3M | read from the schematic by eye | |
| R9 | 100 | 100 | read from the schematic by eye | |
| R10 | 33K | 33k | value hard to read; read from the schematic by eye | |
| R11 | 10K | 10k | read from the schematic by eye | |
| R12 | 12K | 12k | read from the schematic by eye | |
| Capacitors 8 | ||||
| C1 | 0.005uF | 5n | K tolerance; read from the schematic by eye | |
| C2 | 0.005uF | 5n | K tolerance; read from the schematic by eye | |
| C3 | 10uF | 10u | 16V electrolytic; read from the schematic by eye | |
| C4 | 0.001uF | 1n | K tolerance; read from the schematic by eye | |
| C5 | 0.056uF | 56n | read from the schematic by eye | |
| C6 | 0.002uF | 2n | read from the schematic by eye | |
| C7 | 10uF | 10u | 16V bipolar (BP); read from the schematic by eye | |
| ×1 | 22uF | 22u | 25V electrolytic at the DC jack, no designator; read from the schematic by eye | |
| Diodes 3 | ||||
| D1 | 1S953 | 1S953 | read from the schematic by eye | |
| D2 | 1S953 | 1S953 | drawn unlabeled at the second op amp's output; read from the schematic by eye | |
| D3 | RD5AM | RD5AM | 5V zener; read from the schematic by eye | |
| Transistors 1 | ||||
| Q1 | 2SC693F | 2SC693F | Sanyo; read from the schematic by eye | |
| ICs 1 | ||||
| IC | LM1458N | LM1458N | dual op amp, both halves used; no number on the drawing; read from the schematic by eye | |
| Potentiometers 1 | ||||
| R6 | C500K | C500k | Potentiometer | pedal pot, C taper; read from the schematic by eye |
| Trimmers 1 | ||||
| R13 | 2M | 2M | variable resistor in series with R12; read from the schematic by eye | |
| Switches 1 | ||||
| SW1 | DPDT | DPDT | 6-pin (6P) switch, SW1-1/SW1-2; read from the schematic by eye | |
| LEDs 1 | ||||
| D4 | TLR-102 | TLR-102 | read from the schematic by eye | |