This circuit was found in Analog Devices documentation from the 90's. The integrated circuit used is from the time. The circuit is for HDTV signals. of the time.
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...