Enclosure not stated · 4 knobs
Ibanez ST9 Super Tube Screamer
- Category
- Overdrive
- Price
- see vendorin stock
- Tags
- Ibanez, Super Tube Screamer, Overdrive, ST9
From the vendor
The Ibanez ST9 Super Tube Screamer was made only in 1984, and features the same circuitry as the TS9 Tube Screamer but with the addition of a Mid Boost control to augment the traditional Drive, Tone, and Level controls.
Schematic
The schematic image is on the project page. Open it at PCBWay.
Parts list 29 rows
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Check before you build · 3 values the reader of this schematic was not sure of
- input cap 47n vs 4.7n
- mid boost caps 68n/2.7n vs 6.8n/27n
- tone pot B20k (tiny text)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 11 | ||||
| ×6 | 10k | 10k | read from the schematic by eye | |
| ×4 | 1k | 1k | read from the schematic by eye | |
| ×2 | 510k | 510k | read from the schematic by eye | |
| ×2 | 4k7 | 4.7k | one in the drive feedback leg, one LED resistor; read from the schematic by eye | |
| ×2 | 1k5 | 1.5k | mid boost stage; read from the schematic by eye | |
| ×1 | 1M | 1M | read from the schematic by eye | |
| ×1 | 220k | 220k | read from the schematic by eye | |
| ×1 | 51k | 51k | read from the schematic by eye | |
| ×1 | 220 | 220 | read from the schematic by eye | |
| ×1 | 470 | 470 | read from the schematic by eye | |
| ×1 | 47 | 47 | power input series resistor; read from the schematic by eye | |
| Capacitors 10 | ||||
| ×3 | 1u | 1u | read from the schematic by eye | |
| ×2 | 47n | 47n | input cap and drive leg cap; input label could be 4.7n (low-resolution image); read from the schematic by eye | |
| ×2 | 100n | 100n | read from the schematic by eye | |
| ×1 | 68n | 68n | mid boost cap; could read 6.8n; read from the schematic by eye | |
| ×1 | 2.7n | 2.7n | mid boost feedback cap; could read 27n; read from the schematic by eye | |
| ×1 | 51p | 51p | read from the schematic by eye | |
| ×1 | 220n | 220n | read from the schematic by eye | |
| ×1 | 10u | 10u | electrolytic; read from the schematic by eye | |
| ×1 | 100u | 100u | electrolytic; read from the schematic by eye | |
| ×1 | 47u | 47u | electrolytic; read from the schematic by eye | |
| Diodes 2 | ||||
| ×2 | 1S1588 | 1S1588 | clipping diodes; read from the schematic by eye | |
| ×1 | 1N4001 | 1N4001 | reverse polarity; read from the schematic by eye | |
| Transistors 1 | ||||
| ×1 | 2SC1815 | 2SC1815 | output buffer; read from the schematic by eye | |
| ICs 1 | ||||
| ×2 | 4558 | 4558 | four sections drawn, two dual chips; read from the schematic by eye | |
| Potentiometers 4 | ||||
| Drive | A500k | A500k | Potentiometer | read from the schematic by eye |
| Tone | B20k | B20k | Potentiometer | read from the schematic by eye |
| Level | B100k | B100k | Potentiometer | read from the schematic by eye |
| Mid Boost | C10k | C10k | Potentiometer, dual | dual-gang pot, sections (A) and (B); read from the schematic by eye |