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This circuit was found in a 80’s Popular Electronics. It issues a warning signal with the signal of the old type printer with parallel port.
This circuit using a SIDAC is suggested by ON Semiconductor in its thyristor manual. The circuit...
January 2017 - The new Honeywell RSC TruStability ™ pressure sensor mounting board is available from...
Suggested by Motorola in 1968 documentation, this circuit has an efficiency of 70%. Power...