Enclosure not stated · 4 knobs
Rostex Turbo Metal
Based on the Rostex Turbo Metal· 2 other boards clone it
- Category
- Distortion
- Controls
- Distortion · High · Low · Level
- Build
- Vero· 15×17· 14 cuts, 7 links
- Layout
- Unverified · no build reported at Tagboard Effects yet
- Tags
- Distortion, Rostex
From the post
I've heard that in 1991 former Lell engineer went on to form a new company called Rostex. At least that's the rumor and i have no other information about the brand or the pedal. You know anything about these (or have a demo clip/video), please do post it in the comment section.
For the layout, in addition to adding series polarity protection and input pulldown, i subbed the output buffer FET to common 2N7000 pinout.
4-knob version:
And the 3-knobbed version:
(Edit 25.5.2018 23:31: fixed a fault with low wiring and added the 3-knob layout
Edit 29.5.2018 20:35: Fixed 3-knob layout that had a misplaced cut on board image)
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 28 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×3 | 1M | 1M | read from the layout by eye | |
| ×2 | 24K | 24k | read from the layout by eye | |
| ×1 | 1K | 1k | read from the layout by eye | |
| ×3 | 10K | 10k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | read from the layout by eye | |
| ×1 | 470K | 470k | read from the layout by eye | |
| ×1 | 3K | 3k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×1 | 47K | 47k | read from the layout by eye | |
| Capacitors 11 | ||||
| ×3 | 22nF | 22n | read from the layout by eye | |
| ×1 | 68nF | 68n | read from the layout by eye | |
| ×1 | 1.5nF | 1.5n | read from the layout by eye | |
| ×2 | 1nF | 1n | read from the layout by eye | |
| ×1 | 2.7nF | 2.7n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×1 | 200pF | 200p | ceramic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×2 | 4.7uF | 4.7u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 1 | ||||
| ×1 | 2N7000 | 2N7000 | FET; legend: FET was KP303, try 2N7000; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | JRC4558 | JRC4558 | read from the layout by eye | |
| Potentiometers 4 | ||||
| Distortion | A500K | A500k | Potentiometer | read from the layout by eye |
| High | B500K | B500k | Potentiometer | read from the layout by eye |
| Low | B500K | B500k | Potentiometer | read from the layout by eye |
| Level | A500K | A500k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| ×2 | 3mm red LED | 3MM RED LED | D2, D3; read from the layout by eye | |
Other boards based on the Rostex Turbo Metal
- Rostex Turbo Metal Dirtbox Layouts
- Lead Foot Effects Layouts · 125B · $6.00