This 1968 circuit is intended to switch the polarization of a satellite TV antenna of the time. The circuit is powered by 12 V and the transistors are from that time.
This circuit was found in an old 1980s valve documentation. The circuit can directly replace a...
This circuit is from an 80's component manual. However, the circuit may be of a modern equivalent...
Found in an Electronic Design from the 90s, this circuit makes use of a PLL CMOS. Values for...