Enclosure not stated · 3 knobs
Peavey Hotfoot DistortionVerified
Based on the Peavey Hotfoot Distortion
- Category
- Distortion
- Controls
- Distortion · Presence · Level
- Build
- Vero· 20×15· 20 cuts, 7 links
- Layout
- Verified · Tagboard Effects marks it as built and working
- Tags
- Distortion, Peavey
From the post
It's christmas eve already. Ho ho ho for all you builders out there!
We seem to have very few effects with buffered bypass, so i think i found a suitable one. The Peavey HFD-2 Hotfoot Distortion. It's more or less 1:1 with a Rat, but with added JFET input buffer which also takes care of the bypass buffering. There is only 2PDT stomp needed for the bypass, and it takes care of the LED and silencing the circuit too. The original has J231 JEFTs for the buffers, but as those will be a pain to source, i'd suggest using 2N5457 which are used on all the Rats. And those are just buffers, so the tonal differences will be practically none. If you change the values at 1K5 and 47R, both leading to 2µ2 caps, you can get yourself a Rat with a JFET buffered bypass. The method of taking the distortion out when bypassed is also worth a mention. Adjust the value of R-LED to match your indicator LED.
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 22 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×3 | 1M | 1M | read from the layout by eye | |
| ×4 | 100K | 100k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| ×2 | 10K | 10k | read from the layout by eye | |
| ×2 | 1.5K | 1.5k | read from the layout by eye | |
| ×2 | 1K | 1k | read from the layout by eye | |
| ×2 | 47Ω | 47 | read from the layout by eye | |
| ×1 | ? | ? | LED resistor, value not given; read from the layout by eye | |
| Capacitors 8 | ||||
| ×5 | 2.2uF | 2.2u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×1 | 3.3nF | 3.3n | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 39pF | 39p | read from the layout by eye | |
| Diodes 1 | ||||
| ×2 | 1N4148 | 1N4148 | D1, D2; read from the layout by eye | |
| Transistors 1 | ||||
| ×2 | 2N5457 | 2N5457 | JFET; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | LM308 | LM308 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Distortion | A100K | A100k | Potentiometer | read from the layout by eye |
| Presence | C100K | C100k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |