We found this circuit in the November 1985 issue of Radio Electronics magazine. It uses TTL technology and has binary inputs. The circuit must be powered by 5 V.
This circuit was found in a Mullard transistor manual from 1960. Note the symmetrical power...
This amplifier step with a transistor has an input impedance of 100k to 10 M. The transistor can be any...
I found this little signaling transmitter in old American documentation. The circuit has a good...