Shin-ei ME-7 Wah-Hurricane-Siren-Surf-Volume
This was a request. It is an old multieffect that includes wah, two noise generator settings, a volume pedal setting and a “Siren” switch which is an oscillator.
Wah
Royal CW-1 Cosmo Wah Machine
Now this is some crazy stuff! How about a wah / ringmodulator with vibrato tails??? The schematic is avaiable at DeadEnd Fx. Note that the Wah/Cosmo Select switch is the stock 2P6T rotary for this layout.
Royal RP-2 Fuzz Wah Machine
Another old japanese obscurity. There is a hand drawn factory schematic floating on the web but I decided to clean it up in order to build a clone. It looked like slimmed down Ibanez Standard Fuzz with a tone control. and a “Howl Adjust” control which dials in the upper octave. And built the fuzz … Read more
Royal RC-1 Effect Machine
The Royal line of effects was made in Tokyo, Japan in the early 70s by Thunder Electronics. Not much is known about the company but they had some own designs in their portifolio along with the casual Shin Ei superfuzz clone. Royal RC-1 Effect Machine was an inductorless wah which topology was based on fuzz … Read more
Shin-ei Companion WT-1 Wah Wah
Here is one for the Psychocandy fans. Just put this after your superfuzz clone (or to be more accurate, your “6TR” superfuzz clone) and go to town. The stock transformer part number is unknown but a 42TM013 will do with its 500mH inductance. Both 50k and 100k wah pots were used and input cap were … Read more
Park Auto Wah
Not an auto wah in a normal sense, more like an inductorless wah circuit driven by an LFO. This must be one of the earliest modulation pedals and IMO it is a hidden gem. Lots of murky psychedelic madness can be found in this circuit, especially with a dirt box upfront. Rate and Depth controls … Read more
Roland AD-50 Double Beat Wah section
This was a request. Primary intended for the fuzz section but could of course be used as a stand alone unit.
Gyrator Wah Wah
Been fashinated by gyrator tonestacks for a while and when I saw this wah circuit by Olivier Jambois I had to give it a go. Sounds very good and powerful and it is loud! Schematic, a nice writeup and soundclips HERE. Works equally well as a standalone bandpass filter pedal but I recommend to change … Read more
