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.
In the figure we have a circuit that allows us to obtain a variable voltage of approximately 0.5 to 25 V...
This circuit show the performance of a GraetzBridge or Diode Bridge usedin full-wave rectifers....
May 2017 - The new ROHM SFR series anti-sulfur resistors can now be obtained from Mouser...