QRQ CW Keyboard computer interface - using the Peterson Chromatic Tuner 320 & a FET optoisolator

[Chuck aa0hw]

this is a follow up video to the first two videos about using a PETERSON CHROMATIC TUNER 320 as a COMPUTER based CPO CODE PRACTICE OSCILLATOR that you can key, in with STRAIGHT KEY, IAMBIC PADDLES and a CW KEYBOARD

this video demos using an MFJ 451 CW KEYBOARD for QRQ CW sending using the same setup - a PETERSON CHROMATIC TUNER 320 and a FET OPTOISOLATOR to MIC JACK INPUT interface, with the internal software APPs providing the rest of the function to get a computer keying interface going with your cw keyer, cw keyboard and ST KEY and PADDLES etc...

demo of the ST KEY
https://youtu.be/8yETTVCntUU

demo of the IAMBIC PADDLEs
https://youtu.be/_U1eL1i8G4M

the PETERSON CHROMATIC TUNER 320
http://76.12.22.162/media/pdf/320.pdf

FET OPTOISOLATOR H11F1:
https://www.mouser.com/ProductDetail/ON-Semiconductor-Fairchild/H11...

https://www.mouser.com/datasheet/2/308/H11F1M-1120514.pdf

see first previous video's notes for the info on ZAMGATE & the calf bandpass filter audio plugins...