This circuit for VCR recording heads was found in the February 1990 issue of Radio Electronics magazine. The circuit is use do observe signal in an oscilloscope.
This circuit automatically switches a two-voltage transformer when it detects whether the network is...
This flip-flop using two bipolar transistor was found in a publication of the year 1968. The...
We found this circuit in a Japanese 1968’s documentation. The circuit makes use of transistors from...