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.
This useful inductance bridge was found in a Radio Electronics from September 1963. The...
This circuit is a handset receiver that picks up the signal emitted by a coil under the rug or...
This circuit found in the October 1975 issue of Radio Electronics magazine uses an integrated...