Josh Smith - Quick and Dirty - Why I choose Green Ringer style octave over the Octavia! - YouTube
Emerald Ring - Best Octave Up Green Ringer style PCB - GuitarPCB
RING MODULATION | Dan Armstrong 'The Green Ringer' VS LovePedal 'Believe' | Board Or Bin - YouTube
DRIVE UP" meet (yet another) Green Ringer Style freak
gaussmarkov: diy fx » Green Ringer
WD Music Green Ringer | Effects Database
Dan Armstrong Green Ringer Guitar Effects Pedal Green | Musician's Friend
Guitar FX Layouts: Dan Armstrong Green Ringer
Green Ringer w useful additions/mods : r/diypedals
21st Century Green Ringer | From HC CH, used at Green Ringer… | Flickr
Green Ringer - Octave UP!
Dan Armstrong "Green Ringer" /// Clone and Mods
Dan Armstrong – Green Ringer - Mu-Tron
Dirtbox Layouts: Dan Armstrong Green Ringer
Dan Armstrong Green Ringer | Reverb
File:Dan Armstrong Green Ringer circuit - an octave-up effect with a ring-modulator touch to it - just finished building (2006-03-05 22.51.45 by germanium).jpg - Wikimedia Commons
Green ringer - SabroTone
Optical comp + Green Ringer (my first pcb designs)
OCTAVE UP Green Ringer™ clone | chicagostompworks
DAN ARMSTRONG: Green Ringer, Point to Point Layout (EQD Tentacle) | Armstrong, Dan, Ringer
Dan Armstrong Green Ringer 1970's Green | Reverb
Green Ringer in 100 Seconds - YouTube
Guitar FX Layouts: Dan Armstrong Green Ringer
Green Ringer Clone - CircuitLab
File:Atmos - Green-Ringer-based octaver with extra LED clipping (2007-02-05 21.45.11 by germanium).gif - Wikimedia Commons
DAN ARMSTRONG™ GREEN RINGER™ REPLICA RTS PCB – General Guitar Gadgets
Green Ringer "Nulling" Mod
![NPD] Just scored this Zappa-approved Green Ringer! : r/guitarpedals](https://i.redd.it/c02e0gx0g7411.jpg "NPD] Just scored this Zappa-approved Green Ringer! : r/guitarpedals")