Enclosure not stated · 3 knobs
Colorsound Power Boost (later version)
Based on the Colorsound Power Boost· 6 other boards clone it
- Category
- Overdrive
- Price
- see vendor
- Tags
- freestompboxes.org trace
From the vendor
A later 18V Colorsound Power Boost: three silicon transistors (BC169C, BC184C or BC109): a two-transistor high-gain preamp with a 10k pot in the first stage's emitter, a Baxandall bass and treble stack, and a third transistor recovery stage. It differs from the early version in its coupling and bypass capacitors (10u instead of 4.7u, a 220n output cap) and has no 10k output resistor.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 34 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 15 | ||||
| R1 | 120K | 120k | read from the schematic by eye | |
| R2 | 4.7K | 4.7k | read from the schematic by eye | |
| R3 | 150K | 150k | read from the schematic by eye | |
| R4 | 12K | 12k | read from the schematic by eye | |
| R5 | 1.8K | 1.8k | read from the schematic by eye | |
| R6 | 470 | 470 | read from the schematic by eye | |
| R7 | 1.2K | 1.2k | read from the schematic by eye | |
| R8 | 4.7K | 4.7k | read from the schematic by eye | |
| R9 | 4.7K | 4.7k | read from the schematic by eye | |
| R10 | 39K | 39k | read from the schematic by eye | |
| R11 | 5.6K | 5.6k | read from the schematic by eye | |
| R12 | 180K | 180k | read from the schematic by eye | |
| R13 | 33K | 33k | read from the schematic by eye | |
| R14 | 3.9K | 3.9k | read from the schematic by eye | |
| R15 | 1K | 1k | read from the schematic by eye | |
| Capacitors 13 | ||||
| C1 | 220n | 220n | read from the schematic by eye | |
| C2 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C3 | 220p | 220p | read from the schematic by eye | |
| C4 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C5 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C6 | 100n | 100n | across Bass; read from the schematic by eye | |
| C7 | 100n | 100n | read from the schematic by eye | |
| C8 | 10n | 10n | read from the schematic by eye | |
| C9 | 10n | 10n | read from the schematic by eye | |
| C10 | 22u | 22u | electrolytic; read from the schematic by eye | |
| C11 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C12 | 220n | 220n | output; read from the schematic by eye | |
| C13 | 22u | 22u | electrolytic, power filter; read from the schematic by eye | |
| Transistors 3 | ||||
| Q1 | BC169C | BC169C | or BC184C, BC109; read from the schematic by eye | |
| Q2 | BC169C | BC169C | or BC184C, BC109; read from the schematic by eye | |
| Q3 | BC169C | BC169C | or BC184C, BC109; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Volume | 10K | 10k | Potentiometer | read from the schematic by eye |
| Bass | 100K | 100k | Potentiometer | read from the schematic by eye |
| Treble | 100K | 100k | Potentiometer | read from the schematic by eye |
Other boards based on the Colorsound Power Boost
- Nucleus Aion FX · 125B · $12.50
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- Colorsound Power Boost (early version) Revolution Deux
- 18v Colorsound Power Boost Tagboard Effects
- Colorsound Power Boost (early) turretboard.org
- Colorsound Power Boost (later) turretboard.org