This circuit was found in documentation from the 1980s. Transistors are general-purpose types like the BC548 for NPN and the BC558 for PNP.
This circuit is from a 70s documentation. The maximum sampling rate is 800 Hz. The operational...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...
This circuit has a very high input impedance and a very low output impedance. We found it on a...