This variable frequency oscillator for radio transmission covers the range from 1.6 MHz to 20 MHz, depending only on the coil used. The circuit is very stable and can be used in amateur equipment.
This circuit was found in a 1966 General Electric documentation. It makes use of direct contact...
LEDs are diodes and can be tested with a simple configuration that allows the display of its...
This circuit uses components that are still common despite being from 1995 documentation. The circuit can...