Tools, Tones and Toys for Guitarists
Another weird one! A rotary selector selects between a four stage phaser, wah and phaser and wah combined. The latter mode is supposed to be something out of this world. Deadend Fx (who else) have a projects for this beast and as usual, don’t hesitate to support these guys by bying some nifty PCBs. They … Read more
The layout is based on Brian Kepharts modernized version of this weird, fun and old device. HERE is a link to a very detalied description of this circuit, schematic, bias setup and explenations of the small but useful modifications.
This one belongs to the category ” old, weird and forgotten”. Maestro Fuzz Phazzer was an odd piece of gear, a gnarly fuzz based on Maestro FZ-1S Super fuzz followed by an optical discrete phaser circuit….without a LFO. The sweep was controlled by a foot treadle which also acted as a volume control in … Read more
The Grand Orbiter Phase Machine is a four-stage OTA phaser, with options for vibrato or phasing (a bit like a Univibe). Not exactly a small board, but not too much to take on either. MLC caps might be a good idea for some of the 1uf caps to save space. Currently unverified. I have reviewed the … Read more
A classic phaser from the mid-seventies – the Musitronics Mu-Tron Phasor II. It has the same six-stage phaser as the Bi-Phase, with less happening in the oscillator section. This is the hardest layout I have ever done and took some time to finish and check… including some time wasted after I started using a layout with … Read more
Here is a cool one. It is essentally two separate circuits in one box, a fuzz with a switchable octave up and a tweaked Small Stone phaser. Original had separate boards as well and if you wish you can house them in separate enclosures. If you decide to house them in one enclosure, the fuzz … Read more
The more common version of the the vintage Small Stone phaser. Modernized for LM13600/LM13700 OTA ICs.
There was a an incorrect value in the factory schematic. It is now corrected and the layout is verified by slammer88.
