The MXR Phase 90 set the benchmark for phasers, with its thick and rich tone. Our in-house work horse, purchased in 1974, was meticulously spec'd and recreated as the '74 Vintage Phase 90. The hand-wired board features select resistors paired with handmatched FETs to achieve the same smooth and warm modulation as the original. The '74 Vintage Phase 90 comes housed in the classic orange finished box and is adorned with the unmistakable Script logo.

Hand-wired circuit board built with original-spec 1975 components 

Original high-quality Switchcraft Input/Output jacks and Carling bypass switch

Hand-selected FETs, matched to produce deep and rich phasing

All analog circuitry for warm analog tone

Features

Power

The MXR Phase 45 is powered by one 9 volt battery, accessed by removing the bottom plate of the pedal.

Controls

• Footswitch toggles effect on/bypass
• Speed knob regulates overall effect rate

Directions

• Run a cable from your guitar to the Vintage Phase 90’s Input jack and run another cable from the Vintage Phase90’s Output jack to your amplifier.
• Set the Vintage Phase 90’s Speed control knob to the 12 o’clock position.
• Turn the effect on by depressing the footswitch.
• Rotating the Speed knob in a clockwise motion results in a faster phase effect, counterclockwise for a slower effect.

Specifications

• Input Impedance : 470 kΩ
• Output Impedance : 10 kΩ
• Max Input Level   : -5 dBV
• Signal to Noise Ratio* : > 95 dB
• Current Draw : 2.2 mA
• Power Supply : 9 volt battery