Enclosure not stated · 3 knobs
Jen (Gretsch Playboy) Harmon Booster
Based on the Jen Harmon Booster· 5 other boards clone it
From the post
I don’t know what it is, I never build it before, quite recently I heard about it first time. It’s called Harmon Booster, but AFAIK it’s more like overdrive.
Guys on interwebz says it’s cross between Tube Screamer with Big Muff voicing. Cool description! It may be fun.
The real one was build on PNP silicon BC318C. I did my layout with offboard wiring for negative ground powering instead.
Up to you how you’ll wire it up.
Also LED limiting resistor was added on board, and 3PDT switch wiring is showed
Report back how you like it, I miss your emails 🙂
Big thumbs up and credits to SonicIV for schematic
Get your project file (PDF) 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 turretboard.org. No KiCad fragment has been drawn for this circuit yet.
Parts list 21 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 14 | ||||
| ×5 | 100 | 100 | ||
| ×1 | 1k6 | 1.6k | ||
| ×1 | 3,3K | 3.3k | ||
| ×1 | 3k3 | 3.3k | ||
| ×1 | 5k | 5k | ||
| ×4 | 10K | 10k | ||
| ×1 | 18k | 18k | ||
| ×5 | 22K | 22k | ||
| ×1 | 27K | 27k | ||
| ×2 | 33k | 33k | ||
| ×1 | 47k | 47k | ||
| ×1 | 56K | 56k | ||
| ×1 | 560K | 560k | ||
| ×4 | 1M | 1M | ||
| Capacitors 4 | ||||
| ×1 | 2n2 | 2.2n | ||
| ×1 | 3n9 | 3.9n | ||
| ×1 | 10n | 10n | ||
| ×8 | 100nF | 100n | ||
| Potentiometers 3 | ||||
| Sustain | B100K | B100k | ||
| Tone | B100K | B100k | ||
| Volume | B100K | B100k | ||
Other boards based on the Jen Harmon Booster
- Jen Harmon Booster Dirtbox Layouts
- Jen Harmon Booster Effects Layouts (blog)
- Jen Harmon Fuzz Dog · 1590B · £38.40
- Jen (Gretsch Playboy) Harmon Booster Revolution Deux
- Jen Harmon Booster Tagboard Effects · 1590B