VLF QRQ CW Transmitter: keying a TLC551 [sq, wave osc.] to CLASS D audio amp to high Q Ferrite Resonant Antenna

[Chuck aa0hw]

this is a follow up video from the 1st one here:

for more info on the VLF TRANSMITTER SETUP see this video's description:

https://youtu.be/FyYHmT7POKA

in this video, an MFJ451 CW KEYBOARD keys the TLC551 at QRQ speeds