Found in a 1968 Novel Electronics Circuit, this circuit compares two light intensities using common LDRs as sensors. Transistors can be modern PNP equivalents.
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...