Enclosure not stated · 3 knobs
Jen HF Modulator / Gretsch PlayboyVerified
Based on the Jen HF Modulator· 5 other boards clone it
- Category
- Vibrato / Chorus
- Build
- Vero· 17×12· 12 cuts, 4 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Gretsch, Jen, Modulation, Pitch
From the post
Now get your irons out and build it. Place your favourite fuzz in front of it and get ready for some psychedelic brain melting action. The circuit is the same in both, Jen HF Modulator and Gretsch Playboy. For this layout, i've once again swapped the transistor pinout to match your everyday devices. Original has 2N5172 general amplifier transistors in it, but 2N5088, 2N3904 and many others are very close to those in their specs. If you want to use the original ones, just mind the pinout. I've also added series polarity protection diode and pulldown resistors for in and out to prevent your circuit from popping when switched on and off.
Here's a little dcemo clip of my build:
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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 24 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×2 | 220K | 220k | 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 | 12K | 12k | read from the layout by eye | |
| ×1 | 560K | 560k | read from the layout by eye | |
| ×1 | 18K | 18k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 1.2K | 1.2k | read from the layout by eye | |
| ×1 | 2.2K | 2.2k | read from the layout by eye | |
| ×1 | 2.2M | 2.2M | read from the layout by eye | |
| ×1 | 10K | 10k | read from the layout by eye | |
| Capacitors 8 | ||||
| ×3 | 220nF | 220n | read from the layout by eye | |
| ×3 | 47nF | 47n | read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 2.2nF | 2.2n | read from the layout by eye | |
| ×1 | 220pF | 220p | read from the layout by eye | |
| ×1 | 220uF | 220u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | added polarity protection; read from the layout by eye | |
| Transistors 1 | ||||
| ×3 | 2N5088 | 2N5088 | Q1-Q3; legend: 2N5088 (or similar NPN BJT), 2N5172 in original, mind the pinout; read from the layout by eye | |
| Potentiometers 3 | ||||
| Intens | B100K | B100k | Potentiometer | read from the layout by eye |
| Speed | A100K | A100k | Potentiometer | read from the layout by eye |
| Tone | B100K | B100k | Potentiometer | read from the layout by eye |
Other boards based on the Jen HF Modulator
- Jen HF Modulator Dirtbox Layouts
- Jen HF Modulator Effects Layouts (blog)
- Jen HF Modulator Experimentalists Anonymous
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