Enclosure not stated · 3 knobs
Guyatone SD2 Sustainer / HD2 Harmonic Distortion
Based on the Guyatone SD2 Sustainer / HD2 Harmonic Distortion
- Category
- Distortion
- Build
- Vero· 19×19· 23 cuts, 8 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Big Muff, Distortion, Fuzz, Guyatone
From the post
mellasse sent me a schematic for an old Guytatone fuzz, Guyatone DS2 Sustainer. Looking at the schematic I noticed it was really similar to another Guyatone offering, HD Harmonic Distortion. The main difference is the tonestack, HD2 is scooped and SD2 is more mid focused. So this layout have a switch for both SD2 and HD2 modes. Some additional mods had to be made for more versitalty. The fixed tonestack with two 47k resistors is replaced with a 100k.potentiometer that pans bettwen a low pass and high pass filter...just like in a big muff.
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 32 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
- 3nF film cap (strips H-J, column 18): printed clearly, unusual value
- D5-D6: legend says only 'Germanium', no type given
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×5 | 100K | 100k | read from the layout by eye | |
| ×3 | 1K | 1k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 8.2K | 8.2k | read from the layout by eye | |
| ×2 | 100Ω | 100 | read from the layout by eye | |
| ×2 | 18K | 18k | read from the layout by eye | |
| ×2 | 22K | 22k | read from the layout by eye | |
| ×1 | 39K | 39k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 330K | 330k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 150K | 150k | read from the layout by eye | |
| ×1 | 24K | 24k | read from the layout by eye | |
| Capacitors 10 | ||||
| ×3 | 100nF | 100n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 3nF | 3n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×2 | 470pF | 470p | read from the layout by eye | |
| ×2 | 100pF | 100p | read from the layout by eye | |
| ×5 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4, 1N4148/1N914; read from the layout by eye | |
| ×2 | Germanium | GERMANIUM | D5, D6; read from the layout by eye | |
| D7 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×2 | 2N3904 | 2N3904 | Q1-Q2: 2N3904, 2N5088 etc. (2SC1815 in original); read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 4558 | 4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A50K | A50k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| HD/SD | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |