Enclosure not stated · 1 knob
Ibanez PT-900 Phase Tone
Based on the Ibanez PT-900 Phase Tone
- Category
- Vibrato / Chorus
- Controls
- Speed
- Build
- Vero· 21×24· 34 cuts, 27 links
- Layout
- Unverified · no build reported at Dirtbox Layouts yet
- Tags
- Ibanez, Modulation, Phaser
From the post
Schematic is avaiable HERE.
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 Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 24 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 8 | ||||
| ×12 | 82K | 82k | read from the layout by eye | |
| ×5 | 470K | 470k | read from the layout by eye | |
| ×3 | 30K | 30k | read from the layout by eye | |
| ×2 | 24K | 24k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| ×1 | 2K | 2k | read from the layout by eye | |
| ×1 | 200K | 200k | read from the layout by eye | |
| ×1 | 15K | 15k | read from the layout by eye | |
| Capacitors 4 | ||||
| ×7 | 47nF | 47n | read from the layout by eye | |
| ×2 | 200nF | 200n | read from the layout by eye | |
| ×2 | 33uF | 33u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| D1 | 4.7V Zener | 4V7 | read from the layout by eye | |
| D2 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| Q2 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| Q3 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| Q4 | 2SK30A | 2SK30A | JFET; read from the layout by eye | |
| ICs 3 | ||||
| IC1 | 1458 | 1458 | read from the layout by eye | |
| IC2 | 1458 | 1458 | read from the layout by eye | |
| IC3 | 1458 | 1458 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Speed | C500K | C500k | Potentiometer | read from the layout by eye |
| Trimmers 2 | ||||
| ×1 | 220K | 220k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |