Part 2
Part 1 - 2 - 3 - 4 - 5  - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13   RCA 77D Audio Test  - Gary Avey Biography 
Shure Model 55 Video - Commercial Broadcasting - KFIV Years  - The Broadcast Audio Console       
(12) Electro-Voice Engineering Data
655 C Microphone