Found in a 73 magazine from the 1980s, this circuit generates signals from 3.2 to 22 MHz. FETs can be general-0purpose current types. No information about the coils is given.
This circuit was found in the component's own manual, which is not very common nowadays. Note that...
The circuit shown is a Step-Down converter that can provide a 5 A output with 4 to 18 V inputs. The...
This circuit, from a 1988 documentation, makes successive actuation of the shower to control the...