Dan Armstrong – Green Ringer - Mu-Tron
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
DAN ARMSTRONG: Green Ringer, Point to Point Layout (EQD Tentacle) | Dan, Armstrong, Ringer
Dan Armstrong GREEN RINGER (VINTAGE, UK) | Reverb
Dirtbox Layouts: Dan Armstrong Green Ringer
Mu-Tron Dan Armstrong Green Ringer 70's Green | Reverb
Perf and PCB Effects Layouts: Dan Armstrong Green Ringer
RING MODULATION | Dan Armstrong 'The Green Ringer' VS LovePedal 'Believe' | Board Or Bin - YouTube
Dan Armstrong Green Ringer mods
Dan Armstrong "Green Ringer" /// Clone and Mods
Dan Armstrong Pedal Collection - All 6 In the Original Musictronics Box!!! • LA Vintage Gear
WD Music Green Ringer | Effects Database
Dan Armstrong Green Ringer on Perfboard : r/diypedals
Josh Smith - Quick and Dirty - Why I choose Green Ringer style octave over the Octavia! - YouTube
Dan Armstrong™ Green Ringer™ | General Guitar Gadgets
1976 Dan Armstrong Plug-In Effects Various > Effects | Lefty Vintage Guitars
beavis audio research - stompbox schematics
Dan Armstrong™ Green Ringer™ | General Guitar Gadgets
DAN ARMSTRONG™ GREEN RINGER™ REPLICA COMPLETE KIT – General Guitar Gadgets
File:Atmos - Green-Ringer-based octaver with extra LED clipping (2007-02-05 21.45.11 by germanium).gif - Wikimedia Commons
OCTAVE UP Green Ringer™ clone | chicagostompworks
DAN ARMSTRONG™ GREEN RINGER™ REPLICA RTS PCB – General Guitar Gadgets
