This circuit is from an 80's Radio Electronics. The circuit has several output options for 50 mA currents with load indicator through LEDs.
This flip-flop using two bipolar transistor was found in a publication of the year 1968. The...
This simple AM transmitter for very small ranges uses in the original version of the 1970s, a...
The CMOS TLC555 can be gated from external CMOS circuits using the configuration shown here. The...