Enclosure not stated · 3 knobs
Shin Ei 8TR Fuzz WahVerified
Based on the Shin-ei 8TR Fuzz Wah
From the post
Can't find much info on a description of it, but what I do know is that it a superfuzz running into a wah. There's literally 1 component value difference in the superfuzz, the rest is straight up identical to the standard superfuzz.
Quick note about the wiring. Just like the Shin Ei 6TR Fuzz Wah I posted the other day, the fuzz comes before the wah, so you'll wire it up according to the dual effect wiring as shown in the offboard wiring tab. You'll notice instead of making this on 1 massive board I opted for 2 separate boards. This will give you more options for placement in an enclosure, by preventing it from being 1 massive board.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 31 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 3 values the reader of this layout was not sure of
- 200nF x2 on the wah board (top centre and right): printed clearly, unusual value
- 30nF on the wah board (right edge): printed clearly, unusual value
- Transistor count: fuzz legend says Q1-Q4 but six transistors are drawn on the fuzz board; counted as drawn (6 + 2 wah)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| ×8 | 10k | 10k | 7 fuzz, 1 wah; read from the layout by eye | |
| ×7 | 100k | 100k | 6 fuzz, 1 wah; read from the layout by eye | |
| ×6 | 22k | 22k | 4 fuzz, 2 wah; read from the layout by eye | |
| ×3 | 47k | 47k | fuzz; read from the layout by eye | |
| ×3 | 470k | 470k | 1 fuzz, 2 wah; read from the layout by eye | |
| ×3 | 470r | 470 | 2 fuzz, 1 wah; read from the layout by eye | |
| ×1 | 1M | 1M | fuzz; read from the layout by eye | |
| ×1 | 220k | 220k | fuzz; read from the layout by eye | |
| ×1 | 150k | 150k | fuzz; read from the layout by eye | |
| ×1 | 15k | 15k | fuzz; read from the layout by eye | |
| ×1 | 3.3k | 3.3k | fuzz; read from the layout by eye | |
| ×1 | 2k | 2k | fuzz; read from the layout by eye | |
| ×1 | 1.8k | 1.8k | fuzz; read from the layout by eye | |
| ×1 | 1k | 1k | fuzz; read from the layout by eye | |
| ×1 | 1.5k | 1.5k | wah; read from the layout by eye | |
| Capacitors 7 | ||||
| ×1 | 1nF | 1n | fuzz; read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | fuzz; read from the layout by eye | |
| ×1 | 10nF | 10n | wah; read from the layout by eye | |
| ×1 | 30nF | 30n | wah; read from the layout by eye | |
| ×2 | 100nF | 100n | fuzz; read from the layout by eye | |
| ×2 | 200nF | 200n | wah; read from the layout by eye | |
| ×13 | 10uF | 10u | electrolytic; 12 fuzz, 1 wah; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; legend: Si Diodes; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | legend: 1N5817 or Similar (Polarity Protection); read from the layout by eye | |
| Transistors 1 | ||||
| ×8 | 2SC828 | 2SC828 | 6 on the fuzz board (legend: Q1-Q4), 2 on the wah board (Q1 & Q2); legend: Try 2N5088; read from the layout by eye | |
| Inductors 1 | ||||
| ×1 | 500mH | 500mH | wah inductor; read from the layout by eye | |
| Potentiometers 3 | ||||
| Expander | B50K | B50k | Potentiometer | read from the layout by eye |
| Balance | B50K | B50k | Potentiometer | read from the layout by eye |
| Wah | 50K | 50k | Potentiometer | taper not stated; read from the layout by eye |
| Trimmers 1 | ||||
| TR1 | 10k | 10k | read from the layout by eye | |
| Switches 1 | ||||
| Switch | SPDT on/on | SPDT ON/ON | Sw 1-3; read from the layout by eye | |