1590A · 3 knobs
Ibanez TS808 Tube Screamer - 1590AVerified
Based on the Ibanez TS808 Tube Screamer· 15 other boards clone it
From the post
I've had a couple requests for a 1590A friendly Tube Screamer, and lately I've really been enjoying laying out 1590A boards, so here it is. Since there's 3 potentiometers, you'll need to use 9mm pots, and the 3PDT footswitch is board mounted. I would suggest using small profile jacks for this like these, or just measure really carefully when drilling the enclosure. Note that the 100uF power filter capacitor is folded on it's side for space purposes.
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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.
Parts list 26 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×7 | 10K | 10k | read from the layout by eye | |
| ×4 | 1K | 1k | read from the layout by eye | |
| ×2 | 4.7K | 4.7k | one is the LED resistor; read from the layout by eye | |
| ×2 | 510K | 510k | read from the layout by eye | |
| ×1 | 51K | 51k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 220Ω | 220 | read from the layout by eye | |
| ×1 | 100Ω | 100 | read from the layout by eye | |
| Capacitors 9 | ||||
| ×2 | 220nF | 220n | read from the layout by eye | |
| ×2 | 1uF | 1u | drawn as film (oval); read from the layout by eye | |
| ×1 | 100nF | 100n | read from the layout by eye | |
| ×1 | 47nF | 47n | read from the layout by eye | |
| ×1 | 27nF | 27n | read from the layout by eye | |
| ×1 | 51pF | 51p | read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| ×1 | 47uF | 47u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×2 | 1N4148 | 1N4148 | read from the layout by eye | |
| ×1 | 1N4001 | 1N4001 | read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N3904 | 2N3904 | read from the layout by eye | |
| Q2 | 2N3904 | 2N3904 | read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 4558 | 4558 | printed 4558; read from the layout by eye | |
| Potentiometers 3 | ||||
| Gain | A500K | A500k | Potentiometer | read from the layout by eye |
| Tone | B25K | B25k | Potentiometer | read from the layout by eye |
| Level | B100K | B100k | Potentiometer | read from the layout by eye |
| LEDs 1 | ||||
| ×1 | LED | LED | indicator, on board; type not given; read from the layout by eye | |
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