Enclosure not stated · 2 knobs
Sola Sound Tone Bender MK1.5
Based on the Sola Sound Tone Bender MK1.5· 2 other boards clone it
- Category
- Fuzz
- Price
- see vendor
- Also as
- Vero layout · from Revolution Deux
From the vendor
Sola Sound's 1966 two-transistor Tone Bender, built around a pair of Mullard OC75 germanium PNP transistors on a positive-ground supply. Its circuit is the same as the Arbiter Fuzz Face that followed later that year, and Vox used it with a few value changes for their Italian Tone Bender. It is less saturated than the three-transistor MKI.
The usual Fuzz Face gains suit it: about 80-90 hFE for Q1 and 110-130 hFE for Q2.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 11 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 4 | ||||
| R1 | 47K | 47k | Q1 collector; read from the schematic by eye | |
| R2 | 100K | 100k | feedback; read from the schematic by eye | |
| R3 | 470 | 470 | read from the schematic by eye | |
| R4 | 8.2K | 8.2k | Q2 collector; read from the schematic by eye | |
| Capacitors 3 | ||||
| C1 | 5u | 5u | electrolytic, input; read from the schematic by eye | |
| C2 | 10n | 10n | output; read from the schematic by eye | |
| C3 | 25u | 25u | electrolytic; read from the schematic by eye | |
| Transistors 2 | ||||
| Q1 | OC75 | OC75 | germanium PNP; read from the schematic by eye | |
| Q2 | OC75 | OC75 | germanium PNP; read from the schematic by eye | |
| Potentiometers 2 | ||||
| Attack | B1K | B1k | Potentiometer | linear; read from the schematic by eye |
| Level | A100K | A100k | Potentiometer | log; read from the schematic by eye |
Other boards based on the Sola Sound Tone Bender MK1.5
- Solasound Tonebender Mk. 1,5 Dirtbox Layouts
- Sola Sound Tone Bender MK1.5 turretboard.org