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My tour at the 678th AC&W Squadron, Tyndall AFB Florida, began
in March 1958 and lasted until October 1959. This was my
first assignment out of radar maintenance (303x2) school.
Here I had the opportunity to work on both the FPS-20
and FPS-6
. The main
display units were the UPA-35
and the
OA-99 
.
I also had the opportunity to work at the radio communication
receiver site working with the R390
and
GRC27-R278B 
receivers for about
3 months.
My last 9 months at the 678th, I was assigned to training and
working with the GPA-37 system,
an analog computer with a magnetic drum for memory,
The system was full of vacuum tube multi-oscillator circuits using
12AX7 tubes. This system was used for computing speeds and
intercept off-sets. It also had the capability to send instructions
straight to the aircraft using the GPA-34 Data Link console. The display
console was the the GPA-23. 
.
My next assignment was to the 642nd
AC&W Squadron, Red Cliff, St. John's Newfoundland.
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A little History of the 678th from www.radomes.org
This page last revised:
02/23/2008 09:01:31 AM