Enclosure not stated · 5 knobs
VFE Old School TremoloVerified
Based on the VFE Old School Tremolo
From the post
Original Info:
"Our OLD SCHOOL tremolo pedal recalls the luxurious tremolo sounds of vintage tube amps. Derived from a rich sounding, but feature-limited tremolo circuit from the 1960s, we added extra range to both speed & depth controls. But we did not stop there! We added two unique circuits - one to starve the circuit to add grit & chop, and another that can adjust the speed or depth based on your playing dynamics."
You can find Madbean's PDF with schematic 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 38 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 12 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×4 | 150K | 150k | read from the layout by eye | |
| ×3 | 2M2 | 2.2M | read from the layout by eye | |
| ×2 | 2K2 | 2.2k | read from the layout by eye | |
| ×2 | 470R | 470 | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| ×1 | 6K8 | 6.8k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 100R | 100 | read from the layout by eye | |
| Capacitors 8 | ||||
| ×6 | 100n | 100n | read from the layout by eye | |
| ×3 | 680n | 680n | read from the layout by eye | |
| ×2 | 470n | 470n | read from the layout by eye | |
| ×2 | 1n | 1n | read from the layout by eye | |
| ×1 | 10n | 10n | read from the layout by eye | |
| ×1 | 220n | 220n | read from the layout by eye | |
| ×7 | 22u | 22u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| ×4 | 1N5817 | 1N5817 | D1-D4; read from the layout by eye | |
| Transistors 6 | ||||
| Q1 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q2 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| Q3 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q4 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q5 | 2N5088 | 2N5088 | read from the layout by eye | |
| Q6 | 2N5088 | 2N5088 | read from the layout by eye | |
| ICs 2 | ||||
| ×1 | 555 | 555 | read from the layout by eye | |
| ×1 | 4580 | 4580 | read from the layout by eye | |
| Opto 1 | ||||
| ×1 | NSL-32SR3 | NSL-32SR3 | drawn as LED + LDR on the board; read from the layout by eye | |
| Potentiometers 5 | ||||
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Starve | A100K | A100k | Potentiometer | read from the layout by eye |
| Sense | A500K | A500k | Potentiometer | read from the layout by eye |
| Speed | C100K | C100k | Potentiometer | read from the layout by eye |
| Depth | A1M | A1M | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 20K | 20k | read from the layout by eye | |
| Switches 1 | ||||
| Mode | SPDT on/off/on | SPDT ON/OFF/ON | toggle; read from the layout by eye | |
| LEDs 1 | ||||
| Speed LED | 5mm diffused red | 5MM DIFFUSED RED | off-board rate indicator; read from the layout by eye | |