I was just curious whether anyone here owns/has owned a green ringer, and what your thoughts were on it.  I'm thinking of building an effects pedal that combines a Colorsound one knob fuzz clone with a green ringer clone, in one enclosure.  My own sort of mutant octavia.

What is a green ringer?

The Green Ringer Effect Pedal from Dan Armstrong can have a single note played into it and will produce a second tone one octave above the original note. If two notes are played into it, it will produce sum and different tones just like a ring modulator. Depending on the musical interval between the two notes, the additional tones the Green Ringer produces will be harmonically related to the original notes (such as sub octaves) or dissonant. The Ringer guitar pedal gives the musician much better control over the effect produced than a conventional ring modulator, since he is no longer playing against an arbitrary modulator frequency. It features Input Impedance of 100 k Ohms and has Output Impedance of 500 ohms, and a Signal-to-Noise ratio of 86 db.
 
Attribution: http://www.musiciansfriend.com/product/Dan-Armstrong-Green-Ringer-Guitar-Effects-Pedal?sku=150607

It's a Martian marital aid, right?

I guess they must not be too popular.

I'd never heard of the Green Ringer before, but man it sounds interesting!  Thanks for the lead Kevin.  
 

No problem.  I'm actually considering building this to eventually sell, but it will depend on how much I end up liking it, of course.

Kevin:
 
I assume you are looking at the combo Green Ringer/Orange Squeezer Armstrong Twin by Build Your Own Clone?  I built one of their Lazy Sprockets.  If you have been around a soldering iron, you shouldn't have any trouble with the build.  I love mine (a clone of the old Boss Slow Gear volume swell effect).  This thread got me thinking and I'm now bidding on another brand DIY green ringer (no Squeezer) already built on eBay.  Let us know if you get this and how the build goes.
 
Bill, tgo

Found this Green Ringer clone:
 
chamber of sounds - zing
 
(Message edited by hieronymous on June 20, 2010)

I received my General Guitar Gadgets Green Ringer clone I bought on eBay for $30.  Such a deal!  I'd never tried an octave pedal before.  It's more subtle than I expected, but very cool.  I suspect this will be a keeper.
 
Bill, tgo

Hey Bill,
 
I'm actually looking into building one from a board you can purchase at GuitarPCB.com. In the mean time though I'm building a NPN fuzz face clone with adjustable bias, NOS transistors, and a huge sprague orange drop capacitor.