Enclosure not stated · 2 knobs
PUE Sustain FilterVerified
Based on the PUE Sustain Filter
- Category
- Distortion
- Build
- Vero· 19×17· 19 cuts, 6 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Big Muff, Distortion, Fuzz, PUE
From the post
A great sounding Big Muff variant from Poland dating from the early 1980's. Original has a buffer stage after the tonestack and no volume control. I did a stock layout and a modified layout with a normal recovery stage and volume control. Can't find much information on the stock BC622 transistors but any medium high gain silicon works fine.
Stock with Mid switch
Modified circuit
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 23 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
- Q1-Q4 'BC622': printed clearly in the legend, unusual part number; legend adds 'Try BC549C, 2N5088 etc'
- 15K at column 17 (rows K-M, right side): drawn semi-transparent over a link and partly hidden by the 4.7uF can, read as 15K
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×5 | 100K | 100k | read from the layout by eye | |
| ×4 | 15K | 15k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×3 | 100Ω | 100 | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×2 | 3.9K | 3.9k | read from the layout by eye | |
| ×1 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 8 | ||||
| ×3 | 470pF | 470p | read from the layout by eye | |
| ×2 | 4.7nF | 4.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 220nF | 220n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4; legend: 1N4148/1N914; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×4 | BC622 | BC622 | Q1-Q4; legend: Try BC549C, 2N5088 etc; read from the layout by eye | |
| Potentiometers 2 | ||||
| Sustain | B100K | B100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Switch | SPST | SPST | read from the layout by eye | |