CW iambic KEYER by soundcard, 2 audio transformers & FREE software

[Chuck aa0hw]

using a 21Khz sine wave oscillator signal source, and 2 individual AUDIO THRESHOLD to CW MIDI output GATEs, and the RECRI KEYER's midi input iambic CW Keyer Module, using just one laptop Stereo sound card to route audio stereo audio outputs and stereo audio inputs a way to use just one stereo audio sound card native to a laptop is used to be able not only KEY iambics at near zero latency but also hear other OP's CW from iCW mumble server, sonobus, ZOOM etc...

ROUTING PATHWAY 21Khz signal's 'HOT LEAD' goes to iambic paddle's ground lead 21Khz signal's 'GROUND LEAD' goes to ONE side of both transformer inputs leads...(both transformer's input ground's are connected together)

DIT PADDLE lead goes to other side on 1 transformer's input DAH PADDLE lead goes to other side on 2nd transformer's input

output of DIT transformer goes to LEFT MIC INPUT

output of DAH transformer goes to RIGHT MIC INPUT

2 REAGATE audio threshold to CW MIDI NOTE OUTPUT plugins are connected to L/R mic inputs when the incoming 21Khz, keyed by the paddles arrives, it pushes the volume above the threshold and OUT goes a midi note that key's the RECRI CW iambic KEYER's midi input https://github.com/recri/keyer

for more info on this topic of CW REGENERATION methods, see this playlist: http://www.youtube.com/playlist?list=PLfFan4sDonOdFGeEDASG8tcadafHQ...