Enclosure not stated
Shin-ei Fuzz Wah
Based on the Shin-ei Fuzz Wah
- Category
- Fuzz· Fuzz and Fuzzy Noisemakers
- Price
- see vendor
- Tags
- Fuzz and Fuzzy Noisemakers
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 29 rows
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Check before you build · 4 values the reader of this schematic was not sure of
- input cap: blotted, reads 10uF or 30uF
- 1.8K: drawn like 1.9K, could be 1.5K or 1.8K
- 22K at wah transistor base: could be 27K
- 100K at input transistor base may be a trimmer (arrow-like mark)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×1 | 47K~100K | 47K~100K | input bias, select on test (drawn '47K~100K'); read from the schematic by eye | |
| ×8 | 100K | 100k | one at the input transistor base may be drawn as a trimmer; read from the schematic by eye | |
| ×3 | 47K | 47k | one across the second transistor with 0.001uF, one in series with 10uF, one in the filter; read from the schematic by eye | |
| ×3 | 470K | 470k | read from the schematic by eye | |
| ×7 | 10K | 10k | read from the schematic by eye | |
| ×5 | 22K | 22k | the one at the wah transistor base reads 22K or 27K; read from the schematic by eye | |
| ×3 | 470 | 470 | 470 ohm; read from the schematic by eye | |
| ×1 | 1.8K | 1.8k | input transistor emitter; drawn like 1.9K; read from the schematic by eye | |
| ×1 | 18K | 18k | read from the schematic by eye | |
| ×1 | 220K | 220k | read from the schematic by eye | |
| ×1 | 150K | 150k | read from the schematic by eye | |
| ×1 | 2K | 2k | emitter, bypassed by 10uF; read from the schematic by eye | |
| ×1 | 15K | 15k | output stage bias; read from the schematic by eye | |
| ×1 | 1K | 1k | output stage emitter; read from the schematic by eye | |
| ×1 | 1.5K | 1.5k | below the choke; read from the schematic by eye | |
| Capacitors 7 | ||||
| ×1 | ? | ? | input cap, blotted: reads 10uF or 30uF; read from the schematic by eye | |
| ×11 | 10uF | 10u | read from the schematic by eye | |
| ×2 | 0.1uF | 100n | read from the schematic by eye | |
| ×2 | 0.001uF | 1n | read from the schematic by eye | |
| ×1 | 0.01uF | 10n | read from the schematic by eye | |
| ×1 | 0.03uF | 30n | read from the schematic by eye | |
| ×2 | 0.2uF | 200n | wah outputs to the 50K pot; read from the schematic by eye | |
| Diodes 1 | ||||
| ×2 | Diode | DIODE | no part number given; shunt clippers to ground; read from the schematic by eye | |
| Transistors 1 | ||||
| ×8 | 2SC828 | 2SC828 | NPN; drawing says 'Tr-2SC828 x8'; read from the schematic by eye | |
| Inductors 1 | ||||
| CH | ? | ? | wah choke, no value given; read from the schematic by eye | |
| Potentiometers 3 | ||||
| ×1 | 50K-B | B50k | Potentiometer | fuzz section pot (wired as variable resistor to a 10uF); read from the schematic by eye |
| ×1 | 50K-B | B50k | Potentiometer | pot before the output transistor; read from the schematic by eye |
| ×1 | 50K-B | B50k | Potentiometer | wah section pot between the two 0.2uF outputs; read from the schematic by eye |
| Switches 1 | ||||
| S SW | SPDT | SPDT | tone/filter select; read from the schematic by eye | |