MXR Phase 45 Clone Kit

Brand: mklec Select
Model: KPSR45
SKU Code: 150-551-1624
Availability: Out Of Stock
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Price: $28.00
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The MXR Phase 45 comes with paired and tested 2N5952.  Each pair of JFETs are also tested using an in-house build of this kit to verify they will successfully phase shift if the kit is built correctly.

You can find our build guide of this kit on our blog,

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.

This kit is comprised of high-quality components that have been carefully chosen to give you the best performance and sound quality from your build.

Kit Includes:

  • 1/4 Watt Xicon 1% Metal Film Resistors
  • Panasonic Polyester Film Capacitor
  • WIMA Polybox Capacitors
  • Audio Grade Nichicon Electrolytic Capacitors
  • 2N5952 JFET Transistors - Paired/Matched and tested
  • TL072 DIP-8 Dual Op Amp ICs
  • mk-vb21 Stripboard PCB
  • 3PDT Heavy Duty Latching Footswitch
  • 15mm Shaft Alpha Potentiometer
  • Cermet Tripot Potentiometer
  • Diodes
  • DC Chassis Power Socket
  • Parts List
  • Printed Color Board Layout/Schematic
  • DIP-8 Sockets & Header Pins (for socketing the transistor)
  • 2.2K Carbon-film resistor for enclosure LED (LED sold seperately)

Kit Doesn't Include:


Kit Build Details and Instructions by IvIark:

Kit Build Tutorial:

Completed Kit:

MXR Phase 45 Clone Kit


Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement is implied. It is NOT an exact copy of the original. If you want one of them, I suggest you buy one. This is a clone kit for hobbyist/guitarists wanting to take a more hands-on approach and enjoy the rewarding process of building and customizing their own effects pedals. Some changes may have been made as seen fit by the team at tagboardeffects that deviate from the original.

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