1590B · 5 knobs
Engineers Thumb
Based on the Valve Wizard Engineer’s Thumb· 2 other boards clone it
- Category
- Compressor· Dynamics
- Controls
- Release · Threshold · Attack · Level · Ratio
- Price
- £4.50in stock
From the vendor
A compressor / sustainer pedal, that rumor says is a Dyna-Comp/Ross Comp killer! If you want the full in depth detail, head over to the original page by Valve Wizard.
5 knobs and a toggle on this one – so drill it carefully.
Controls
• Attack
• Release
• Ratio
• Threshold
• Level
• Bright (ON/ON Toggle)
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 39 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| R2 | 1K | 1k | 0.25 Watt Resistor | |
| R8 | 1K | 1k | 0.25 Watt Resistor | |
| R9 | 1K | 1k | 0.25 Watt Resistor | |
| R10 | 1K | 1k | 0.25 Watt Resistor | |
| R4 | 10K | 10k | 0.25 Watt Resistor | |
| R5 | 10K | 10k | 0.25 Watt Resistor | |
| R7 | 10K | 10k | 0.25 Watt Resistor | |
| R11 | 1M | 1M | 0.25 Watt Resistor | |
| R101 | 1M | 1M | 0.25 Watt Resistor | |
| R102 | 1M | 1M | 0.25 Watt Resistor | |
| R1 | 10M | 10M | 0.25 Watt Resistor | |
| R3 | 100K | 100k | 0.25 Watt Resistor | |
| R6 | 220R | 220 | 0.25 Watt Resistor | |
| R12 | 100R | 100 | 0.25 Watt Resistor | |
| Capacitors 8 | ||||
| C4 | 10uF | 10u | Cap-Electro-Radial | |
| C101 | 10uF | 10u | Cap-Electro-Radial | |
| C5 | 1uF | 1u | Cap-Electro-Radial | |
| C6 | 1uF | 1u | Cap-Electro-Radial | |
| C1 | 10nF | 10n | Cap-Box | |
| C2 | 100pF | 100p | Cap-Ceramic | |
| C3 | 4.7nF | 4.7n | Cap-Box | |
| C100 | 100uF | 100u | Cap-Electro-Radial | |
| Diodes 4 | ||||
| D1 | 1N4148 | 1N4148 | Standard Diode | |
| D2 | 1N4148 | 1N4148 | Standard Diode | |
| D5 | 1N4148 | 1N4148 | Standard Diode | |
| D6 | 1N4148 | 1N4148 | Standard Diode | |
| Transistors 1 | ||||
| Q1 | 2N3906 | 2N3906 | Transistor-TO-92 Inline Wide | |
| ICs 3 | ||||
| U1 | TL072 | TL072 | IC-DIP-8 | |
| U2 | TL072 | TL072 | IC-DIP-8 | |
| U3 | LM13700 | LM13700 | IC-DIP-16 | |
| Potentiometers 5 | ||||
| RELEASE | B1M | B1M | Potentiometer Alpha just holes | |
| THRESHOLD | B1M | B1M | Potentiometer Alpha just holes | |
| ATTACK | B100K | B100k | Potentiometer Alpha just holes | |
| LEVEL | A10K | A10k | Potentiometer Alpha just holes | |
| RATIO | A1M | A1M | Potentiometer Alpha just holes | |
| Switches 1 | ||||
| BRIGHT | ON/ON | ON/ON | SPDT-Switch-Holes | |
| LEDs 2 | ||||
| D3 | 3mm Red LED | 3MM RED LED | LED 3MM | |
| D4 | 3mm Red LED | 3MM RED LED | LED 3MM | |
| Other 1 | ||||
| TP1 | Board-Connector-4-board-connector | BOARD-CONNECTOR-4-BOARD-CONNECTOR | TH-SolderPad-Medium-4 | |
Other boards based on the Valve Wizard Engineer’s Thumb
- Engineer's Thumb Compressor JMK PCBs · 1590B · $12.00
- Mini Comp JMK PCBs