We find this circuit in American documentation from the 1980s. It consists of a frequency folder using a varicap. The capacitors and coils depend on the frequency of operation.
June 2017 - The new ROHM stepper control evaluation kit can now be purchased from Mouser...
This is a typical common emitter amplifier stage configuration. The transistor can be used...
This circuit can reduce the voltage of a source by providing regulated adjustable output. The...