Bob Heil K9EID ~ More thoughts on audio ~ TX and RX!
1:31:01
Dr Bob Heil: From the microphone to the antenna
50:38
Understanding Speech Articulation by Dr. Bob Heil, K9EID
3:54
How one local sound engineer revolutionized rock and roll
35:09
Ovnis : les vérités d’un ancien patron de la DGSE - Alain Juillet
9:50
Bob Heil | Living St. Louis
1:24:36
Raisa R1BIG / OH7BG
7:16
Bob Heil Talks about the origins of the "Talk Box" - 1997
3:59