1590B · 3 knobs
Fuzz Dog· 18Watt
18 Watt
Based on the RunOffGroove Eighteen
- Category
- Overdrive· OD/Dist/Preamp
- Controls
- Vol · Tone · Mast
- Difficulty
- Medium
- Price
- £36.00
- Tags
- od-distortion
From the vendor
Another banger from the archives of Run Off Groove.
Here we have an emulation of the tones of mid-late 60's Marshall EL84-based 18 watt practice amps.
Not much more to say, other than it does the job nicely.
There's some fine bias tweaking to be done, so a multimeter is essential for this build.
Supplied with board-mounted pots with round shafts, so you'll need set-screw fitting knobs).
If you want the PCB without parts there's a link for that at the bottom of the page.
Partial kit: PCB, all board-mounted components, pots.
Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.
Enclosure (pre-drilled) is only available with full kits, and won't take a battery . Knobs are not included.
Builds are only available with full kits including enclosures. Please choose appropriate knobs.
Inspired by: RunOffGroove Eighteen
Difficulty: Medium
PCB size: 50 x 42mm
Knobs required: 3
Enclosure: 1590B
Direct Connect compatible (4 way)
Download the INSTRUCTION PDF
Schematic
The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| R1 | 1M | 1M | ||
| R2 | 820R | 820 | ||
| R3 | 1K | 1k | ||
| R4 | 470K | 470k | ||
| R5 | 100K | 100k | ||
| R6 | 820R | 820 | ||
| R7 | 8K2 | 8.2k | ||
| R8 | 1K | 1k | ||
| R9 | 470K | 470k | ||
| R10 | 8K2 | 8.2k | ||
| R11 | 120R | 120 | ||
| R12 | 1K | 1k | ||
| R13 | 15K | 15k | ||
| R14 | 15K | 15k | ||
| Capacitors 11 | ||||
| C1 | 10n | 10n | ||
| C2 | 4n7 | 4.7n | ||
| C3 | 220p | 220p | ||
| C4 | 10n | 10n | ||
| C5 | 10n | 10n | ||
| C6 | 15n | 15n | ||
| C7 | 2n2 | 2.2n | ||
| C8 | 2n2 | 2.2n | ||
| C9 | 47u | 47u | elec | |
| C10 | 100u | 100u | elec | |
| C11 | 47u | 47u | elec | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | ||
| Transistors 3 | ||||
| Q1 | J201 | J201 | ||
| Q2 | J201 | J201 | ||
| Q3 | J201 | J201 | ||
| Potentiometers 3 | ||||
| VOL | 500KA | A500k | Potentiometer | |
| TONE | 500KA | A500k | Potentiometer | |
| MAST | 100KA | A100k | Potentiometer | |
| Jacks & sockets 1 | ||||
| J201 | the | THE | ||