This latched switch configuration was obtained from National Semiconductor documentation on the LM3909. The circuit works with a 3 V power supply.
This three-transistor circuit was found in Radio Electronics magazine from May 1969. The circuit is...
This beat frequency oscillator was found in a 1980s documentation. The original FET has a grounded...
With this circuit it is possible to make the selection of transistors and their test according to the...