The operating frequency of this circuit is 465 Hz and the input voltage is 12 VAC. The circuit is 65% efficient. We found it in a 1968 Motorola publication.
Written in an article in Radio Electronics magazine in April 1987, this circuit triggers an alarm...
This is the receiver circuit for the previous transmitter. The circuit has a programming key to...
This is an example of a temperature sensor shield using the Texas Instruments TMP390 obtained from...