Enclosure not stated · 2 knobs
ROG Whisker BiscuitVerified
Based on the Run Off Groove Whisker Biscuit· 1 other board clones it
From the post
I thought a few Big Muff fans who were looking for something a little different may be interested in this. From the runoffgroove website: "The Whisker Biscuit is a hybrid of the Bazz Fuss and the Big Muff Pi. A single Bazz Fuss stage replaces the two clipping stages of the BMP. Smooth, super-long sustain, and good clean-up with the guitar volume knob make this circuit an interesting alternative to the standard BMP."
They suggest that for "a velvet-like reduced treble sound" you can add a 47pf cap (or choose a value to taste) in parallel with the 470k Base/Collector resistors in Q1 and Q3. Like you see in the Big Muff 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 Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.
Parts list 14 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| ×4 | 10K | 10k | read from the layout by eye | |
| ×3 | 33K | 33k | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 100R | 100 | read from the layout by eye | |
| Capacitors 3 | ||||
| ×4 | 100n | 100n | read from the layout by eye | |
| ×2 | 4n7 | 4.7n | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| Transistors 3 | ||||
| Q1 | 2N5089 | 2N5089 | read from the layout by eye | |
| Q2 | MPSA13 | MPSA13 | read from the layout by eye | |
| Q3 | 2N5089 | 2N5089 | read from the layout by eye | |
| Potentiometers 2 | ||||
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
| Volume | A100K | A100k | Potentiometer | read from the layout by eye |
Other boards based on the Run Off Groove Whisker Biscuit
- Run Off Groove Whisker Biscuit Effects Layouts (blog)