Enclosure not stated · 3 knobs
Heiss Wurst CMOS Overdrive
Based on the EHX HOT TUBES· 2 other boards clone it
- Category
- Overdrive
- Controls
- Vol · Tone · Drive
- Price
- $7.00in stock
From the vendor
This can be compared to the vintage Hot Tubes overdrive, with some extra filtering. Includes a tone bypass switch.
No changes were made to the circuit itself from V1, but V2 features an improved layout, resulting in MUCH lower noise when the drive control is dimed.
Current V.2.0 build document:
Old V.1.0 document:
Schematic
The schematic is in the vendor's build document. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 45 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 22 | ||||
| R1 | 1M | 1M | ||
| R2 | 120k | 120k | ||
| R3 | 220k | 220k | ||
| R4 | 220k | 220k | ||
| R5 | 20k | 20k | ||
| R6 | 75k | 75k | ||
| R7 | 20k | 20k | ||
| R8 | 33R | 33 | ||
| R9 | 8k2 | 8.2k | ||
| R10 | 1M8 | 1.8M | ||
| R11 | 150k | 150k | ||
| R12 | 2M2 | 2.2M | ||
| R13 | 200k | 200k | ||
| R14 | 5k6 | 5.6k | ||
| R15 | 1k2 | 1.2k | ||
| R16 | 430k | 430k | ||
| R17 | 1M | 1M | ||
| R18 | 47k | 47k | ||
| R19 | 150k | 150k | ||
| R20 | 1M | 1M | ||
| R21 | 47k | 47k | ||
| R22 | 150R | 150 | ||
| Capacitors 17 | ||||
| C1 | 100n | 100n | ||
| C2 | 1uF | 1u | ||
| C3 | 220u | 220u | ||
| C4 | 180p | 180p | ||
| C5 | 4u7 | 4.7u | ||
| C6 | 33u | 33u | ||
| C7 | 47p | 47p | ||
| C8 | 100n | 100n | ||
| C9 | 150n | 150n | ||
| C10 | 10u | 10u | ||
| C11 | 100n | 100n | ||
| C12 | 120n | 120n | ||
| C13 | 220n | 220n | ||
| C14 | 220n | 220n | ||
| C15 | 4u7 | 4.7u | ||
| C16 | 4u7 | 4.7u | ||
| C17 | 27p | 27p | ||
| Diodes 1 | ||||
| D1 | 1n4001 | 1N4001 | ||
| ICs 2 | ||||
| IC1 | JRC4558 | JRC4558 | ||
| IC2 | CD4049UBE | CD4049UBE | ||
| Potentiometers 3 | ||||
| VOL | 10KA | A10k | Potentiometer | |
| TONE | 10KB | B10k | Potentiometer | |
| DRIVE | 2MB | B2M | Potentiometer | |