February 2022 Blog Posts (4)

Heathkit HD-1416 Code Practice Oscillator: better audio with parallel and series resonant LC circuit

brief demo of using a parallel resonant LC circuit resonant at the CW PITCH for the HD-1416 output and then a series resonant LC circuit that is connected to the SPEAKER

both FERRITE BOBBIN CORE INDUCTOR COILS are 1.8mH

Added by Chuck aa0hw on February 12, 2022 at 3:31pm — No Comments

VLF CW AM 16Khz Transceiver project for MUMBLE iCW - LPAM VLF AM Transmitter & the Rohde's AM Receiver

see video description notes for more info on these setups

Added by Chuck aa0hw on February 11, 2022 at 2:58pm — No Comments

Rohde's AM Detector 33.7Khz - DIY - AM Receiver - LIVE DEMO - both CW & HD VOICE audio

demo of using the Rohde's AM Detector to make a homebrew AM RECEIVER

http://www.pan-tex.net/usr/r/receivers/elrpicamdetect.htm

demodulating a 33.7Khz AM Signal from an IP STREAM via the wavpack codec encoder/decoder on a pc…

Continue

Added by Chuck aa0hw on February 7, 2022 at 2:22pm — 2 Comments

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