The AM Forum
AMfone's Online AM Handbook => Printed Material => Topic started by: Opcom on February 18, 2015, 12:54:28 AM
Title:
Quiet turn-on of carbon microphones
Post by:
Opcom
on
February 18, 2015, 12:54:28 AM
Quiet turn-on of carbon microphones
https://www.google.com/patents/US3706852
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Powered by SMF 1.1.21
|
SMF © 2015, Simple Machines