Really appreciate that. If you would please post here when it's back on line. TIA.
Wxtech Weather Equipment Technical Library
www.lexingtonwx.com/techdata/index.htmlMy technical library has pre-1970s U. S. Air Force weather station equipment manuals and training books available for anyone to use. The publications were published by the government, so they are not copyrighted and they cannot be sold or charged for their use.
The technical library has information on wind, temperature-humidity, visibility, cloud height and storm detection radar. Included is the AN/FMN-1 RVR computer. It was a unique device that predates modern computing methods. It had a mechanical Read Only Memory (ROM). The circuitry was totally discrete transistors, no integrated circuits.
The FMN-1 digital format was 4 bits counting from 0 to 9 in a 1-2-4-‘2 value. We read the data form as “1, 2, 4, not 2”. When all 4 bits were in the on state, would equal decimal 9. Hence the circuits counted to decimal 0 to 9.
Note that the link to Magnetic Amplifiers, Power Supplies and Regulators brings the wrong pdf. I’ll correct that soon.
I have written books about soldering
http://www.lexingtonwx.com/html/soldering.htmlDavis wind speed and direction sensor
http://www.lexingtonwx.com/anemometer/Edit: The hard paper copies of the source books were donated to the USAF Air Force Weather Agency - History Office. I had no means to scan the large fold out schematics but they were saved by the USAF Historian.