VaporRay – inspired by Vemuram Jan Ray. DIY PCB. Overdrive

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


A versatile overdrive circuit, which is inspired by the Vemruam ‘Jan Ray’.  This is an easy and rewarding overdrive to build.

In stock



The VaporRay Overdrive PCBs brings great transparent analog overdrive for those who know which end of a soldering iron to hold.

The basis of the VaporRay starts with an four control PCB.  This overdrive can cop mild overdriven tones to kicking your favorite front end of your amp into sonic bliss territory.  It delivers true boutique analog overdrive each and every time.

Includes one VaporRay PCB.  You supply the components.  See the build doc below for more info!


  • Pads line up with rullywow.com 3PDT boards
  • Internal bass control
  • Very easy to build!




2 reviews for VaporRay – inspired by Vemuram Jan Ray. DIY PCB. Overdrive

  1. Rated 5 out of 5

    Paul (verified owner)

    My new go to overdrive to goose either my tube heads or 11R. It’s voiced perfect. My build is stock 1n4148 diodes but a TI LM1458N op-amp.

  2. Rated 5 out of 5

    Carl (verified owner)

    Fantastic sounding circuit! Sounds a lot like an over driven blackface. But socket the diodes and try the MA856 diodes for some more sizzle!

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