This transistor gain test was published in Radio Electronics magazine in July 1959. The transformer used is a special type common at the time. The circuit tests general-purpose transistors.
Found in older Signetics documentation, this circuit generates signals from 30 Hz to 25 kHz....
This circuit trips a relay when it stops receiving a signal. The transistor is germanium. We found...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...