Enclosure not stated · 4 knobs
T-Rex Gristle KingVerified
Based on the T-Rex Gristle King
From the post
Original FSB thread and schematic available here.
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 40 rows
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Check before you build · 1 value the reader of this layout was not sure of
- 20n film cap at left, between 100K and 2K2 below Q1: printed clearly, unusual value
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 13 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 100K | 100k | read from the layout by eye | |
| ×2 | 33K | 33k | read from the layout by eye | |
| ×1 | 100R | 100 | read from the layout by eye | |
| ×1 | 1K5 | 1.5k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×1 | 2K2 | 2.2k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 470R | 470 | read from the layout by eye | |
| ×2 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 11 | ||||
| ×3 | 1u | 1u | read from the layout by eye | |
| ×2 | 100p | 100p | read from the layout by eye | |
| ×2 | 47n | 47n | read from the layout by eye | |
| ×2 | 33n | 33n | read from the layout by eye | |
| ×1 | 100n | 100n | read from the layout by eye | |
| ×1 | 220n | 220n | read from the layout by eye | |
| ×1 | 20n | 20n | read from the layout by eye | |
| ×1 | 390p | 390p | read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| ×1 | 22u | 22u | electrolytic; read from the layout by eye | |
| ×1 | 47u | 47u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | Ge diode | GE DIODE | D1, D2; legend: Ge Diodes; read from the layout by eye | |
| ×3 | 1N4007 | 1N4007 | D3, D4, D5; read from the layout by eye | |
| Transistors 2 | ||||
| ×2 | NPN silicon | NPN SILICON | Q1, Q2; legend: NPN Silicon (Test), no part number; read from the layout by eye | |
| Q3 | JFET | JFET | legend: JFet (Test), no part number; read from the layout by eye | |
| ICs 1 | ||||
| IC | JRC4560 | JRC4560 | legend: JRC4560 (Test); read from the layout by eye | |
| Potentiometers 4 | ||||
| More | A100K | A100k | Potentiometer | read from the layout by eye |
| Gravy | B10K | B10k | Potentiometer | read from the layout by eye |
| Gristle | A1M | A1M | Potentiometer | read from the layout by eye |
| Tone | B25K | B25k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 50K | 50k | read from the layout by eye | |
| Switches 5 | ||||
| Gristle | 3PDT | 3PDT | Switch 1, footswitch for the overdrive side; read from the layout by eye | |
| More | 3PDT | 3PDT | Switch 2, footswitch for the boost side; read from the layout by eye | |
| Pre/Post | 3PDT | 3PDT | Switch 3, toggle; read from the layout by eye | |
| Flavor | SPDT | SPDT | Switch 4; read from the layout by eye | |
| Phat | SPDT | SPDT | Switch 5; read from the layout by eye | |
| LEDs 1 | ||||
| D6 | Red LED | RED LED | on board; read from the layout by eye | |