Enclosure not stated · 3 knobs
Ibanez TS9 without output bufferVerified
Based on the Ibanez TS9 Tube Screamer· 4 other boards clone it
From the post
With switch to change between symmetrical and asymmetrical clipping.
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 23 rows
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Check before you build · 2 values the reader of this layout was not sure of
- 20n left of the 510K: printed clearly, unusual value
- The second of the two diodes at the bottom of the switch is also printed D4 (probably meant D5)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 6 | ||||
| ×4 | 1K | 1k | read from the layout by eye | |
| ×5 | 10K | 10k | read from the layout by eye | |
| ×1 | 510K | 510k | read from the layout by eye | |
| ×1 | 51K | 51k | read from the layout by eye | |
| ×1 | 4K7 | 4.7k | read from the layout by eye | |
| ×1 | 220R | 220 | read from the layout by eye | |
| Capacitors 7 | ||||
| ×1 | 51p | 51p | read from the layout by eye | |
| ×1 | 20n | 20n | read from the layout by eye | |
| ×1 | 47n | 47n | read from the layout by eye | |
| ×2 | 220n | 220n | read from the layout by eye | |
| ×2 | 1u | 1u | read from the layout by eye | |
| ×1 | 47u | 47u | electrolytic; read from the layout by eye | |
| ×1 | 100u | 100u | electrolytic; read from the layout by eye | |
| Diodes 4 | ||||
| D1 | ? | ? | value not given; on the clipping switch; read from the layout by eye | |
| D2 | ? | ? | value not given; on the clipping switch; read from the layout by eye | |
| D3 | ? | ? | value not given; on the clipping switch; read from the layout by eye | |
| ×2 | ? | ? | value not given; both printed D4, on the clipping switch; read from the layout by eye | |
| Transistors 1 | ||||
| Q1 | ? | ? | value not given; legend says NPN silicon; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | JRC4558 | JRC4558 | read from the layout by eye | |
| Potentiometers 3 | ||||
| Drive | A500K | A500k | Potentiometer | read from the layout by eye |
| Tone | B10K | B10k | Potentiometer | read from the layout by eye |
| Level | A100K | A100k | Potentiometer | read from the layout by eye |
| Switches 1 | ||||
| Sw1 | DPDT on/on | DPDT ON/ON | symmetrical / asymmetrical clipping toggle, 2 position; read from the layout by eye | |
Other boards based on the Ibanez TS9 Tube Screamer
- Ibanez TS9 Tube Screamer Effects Layouts (blog) · 1590B
- Ibanez TS9 Experimentalists Anonymous
- Ibanez TS9 Tagboard Effects
- Ibanez TS9 Tube Screamer turretboard.org