Enclosure not stated · 2 knobs
Shin Ei / Univox SQ-150 Square WaveVerified
Based on the Univox SQ-150 Square Wave· 4 other boards clone it
- Category
- Fuzz
- Controls
- Distortion · Balance
- Build
- Vero· 15×11· 8 cuts, 3 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Fuzz, Shin Ei, Univox
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 21 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 layout was not sure of
- 33uF electrolytic at column 14, rows E-G: first digit partly hidden by the can's stripe, read as 33uF
- 2M resistor at column 4, rows E-G: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 560K | 560k | read from the layout by eye | |
| ×1 | 680Ω | 680 | read from the layout by eye | |
| ×1 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 27K | 27k | read from the layout by eye | |
| ×1 | 270K | 270k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 2M | 2M | read from the layout by eye | |
| Capacitors 6 | ||||
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 33uF | 33u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| C6 | ? | ? | value not given; optional cap to eliminate noise, legend suggests 100pF; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | Germanium | GERMANIUM | D1, D2; type not given; Try 1N4148/1N914 for more output volume; read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5088 | 2N5088 | 2SC1312G in original; try 2N5088, BC550C etc; read from the layout by eye | |
| Q2 | 2N5457 | 2N5457 | JFET; 2SK34C in original; try 2N5457, J113 etc.; read from the layout by eye | |
| Potentiometers 2 | ||||
| Distortion | B250K | B250k | Potentiometer | read from the layout by eye |
| Balance | A50K | A50k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 20K | 20k | read from the layout by eye | |
Other boards based on the Univox SQ-150 Square Wave
- Univox SquareWave Effects Layouts (blog) · 1590A
- Univox Square Wave Fuzz Fuzz Dog · 1590B · £25.20
- Pulse Wave Fuzz PedalPCB · 125B · $8.00
- Univox SQ-150 Square Wave Tagboard Effects