1590B · 1 knob
MXR Phase 45Verified
Based on the MXR Phase 45· 12 other boards clone it
From the post
I thought a small and simple phaser would be another good addition and so the Phase 45 is the automatic choice to remain 1590B friendly. For the best results the JFETs need to be matched so you can either swap and change to select the pair that give the best sound, or measure them using a method like this one so you know they are a close match.
Info from MXR about their currently available 75 Vintage Phase 45:
The '75 Vintage Phase 45 reissue from the MXR Custom Shop reproduces the rare little brother of the Phase 90 to exacting specifications. With two stages of phasing, the Phase 45 offers up its subtle and musical voice via hand-matched FETs and hand-wired circuit board. Authentic tried and true components and hardware such as a Carling switch, CTS pot and Switchcraft jacks. Texture your tone without over powering your sound with the limited-edition '75 Vintage Phase 45.
Geiri's video of his build:
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 16 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 7 | ||||
| ×13 | 10K | 10k | read from the layout by eye | |
| ×5 | 150K | 150k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×2 | 1M | 1M | read from the layout by eye | |
| ×1 | 20K | 20k | read from the layout by eye | |
| ×1 | 3M9 | 3.9M | read from the layout by eye | |
| ×1 | 7K5 | 7.5k | read from the layout by eye | |
| Capacitors 3 | ||||
| ×4 | 47n | 47n | read from the layout by eye | |
| ×4 | 10n | 10n | read from the layout by eye | |
| ×3 | 10u | 10u | electrolytic; read from the layout by eye | |
| Diodes 1 | ||||
| D1 | 1N5230 | 1N5230 / 4V7 | zener; read from the layout by eye | |
| Transistors 2 | ||||
| Q1 | 2N5952 | 2N5952 | JFET; read from the layout by eye | |
| Q2 | 2N5952 | 2N5952 | JFET; read from the layout by eye | |
| ICs 1 | ||||
| ×2 | TL072 | TL072 | read from the layout by eye | |
| Potentiometers 1 | ||||
| Speed | B500K | B500k | Potentiometer | read from the layout by eye |
| Trimmers 1 | ||||
| Bias | 250K | 250k | read from the layout by eye | |
Other boards based on the MXR Phase 45
- Apex Aion FX · 125B · $12.50
- MXR Phase 45 Dirtbox Layouts
- MXR Phase 45 Effects Layouts (blog) · 1590B
- P45 Phaser Fuzz Dog · 1590B · £30.00
- MXR Phase 45 General Guitar Gadgets · $15.00
- Shift 45 HotKits · 1590B
- Smoothie Madbean · 1590B · $10.00
- Phase 45 OP Electronics · €1.50
- MXR Phase 45 with JC Maillet's Vibe mods Revolution Deux
- PH75 - p45 Sheepylove · €10.00
- MXR Phase 45 modded Tagboard Effects · 1590B
- MXR Phase 45 Tonepad · $11.00