Vintage 455C Noise generator
The 455C Noise generator was a rack mount source of white noise in the audio and ultrasonic frequency ranges. The noise spectrum was 20...
GS Machine shop 1965
GS Machine Shop 1965, Richard Vanderlippe, Ray Jordan, Stuart Herrick. The cylinders in the photo are the clutch housing for the gear box...
Electronic switch series 829
I came across this antique 829E electronic switch on Ebay the other day. It has the original inspection tag still attached after 50...
The good old days
photo: 1964 Wiring and Assembly, background - Norm Tursky, forground - Bob Schneider These are the good old days of my fondest memories...
Enter the microprocessor
The 1723 Middle-ear analyzer is a prime example of the ultimate in mechanical and analog design. It was without question the best in the...
During the 70's
Instruments for Hearing Research The 1703 Recording Audiometer was designed to be used under conditions in which large numbers of...
