Enclosure not stated · 1 knob
MXR Phase 90Verified
Based on the MXR Phase 90· 14 other boards clone it
- Category
- Vibrato / Chorus
- Controls
- Rate
- Build
- Vero· 21×26· 32 cuts, 26 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Modulation, MXR, Phaser
From the post
This one has been requested a lot but I never ended up with a layout that left me satisifed. But now I think I got it. I also included two mods; Script/Block swith and 2/4 Stages switch. 2N5952 J FETs is nearly impossible to score nowadays,, good subs would be 2N5485 or 2N5457 and possibly others. Just mind the pinout.
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 28 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 9 | ||||
| ×1 | 4.7K | 4.7k | read from the layout by eye | |
| ×10 | 10K | 10k | read from the layout by eye | |
| ×1 | 22K | 22k | read from the layout by eye | |
| ×4 | 24K | 24k | read from the layout by eye | |
| ×1 | 56K | 56k | read from the layout by eye | |
| ×6 | 150K | 150k | read from the layout by eye | |
| ×2 | 470K | 470k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 3.9M | 3.9M | read from the layout by eye | |
| Capacitors 4 | ||||
| ×2 | 10nF | 10n | read from the layout by eye | |
| ×6 | 47nF | 47n | read from the layout by eye | |
| ×2 | 15uF | 15u | electrolytic; read from the layout by eye | |
| ×1 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 3 | ||||
| D1 | 1N914 | 1N914 | read from the layout by eye | |
| D2 | 5.1V Zener | 5V1 | read from the layout by eye | |
| D3 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 5 | ||||
| Q1 | 2N5952 | 2N5952 | JFET, Q1-Q4 matched; read from the layout by eye | |
| Q2 | 2N5952 | 2N5952 | JFET, Q1-Q4 matched; read from the layout by eye | |
| Q3 | 2N5952 | 2N5952 | JFET, Q1-Q4 matched; read from the layout by eye | |
| Q4 | 2N5952 | 2N5952 | JFET, Q1-Q4 matched; read from the layout by eye | |
| Q5 | 2N4125 | 2N4125 | read from the layout by eye | |
| ICs 3 | ||||
| IC1 | TL062 | TL062 | read from the layout by eye | |
| IC2 | TL062 | TL062 | read from the layout by eye | |
| IC3 | TL062 | TL062 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Rate | C500K | C500k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| ×1 | 250K | 250k | read from the layout by eye | |
| Switches 2 | ||||
| Script/Block | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
| Stages | SPDT on/on | SPDT ON/ON | toggle; read from the layout by eye | |
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