This boost amplifier was found in a Popular Electroniics from the 90s. The circuit operates up to 20 MHz depending on the coils used.
We found this circuit in an English publication from 1995. The Hall sensor used is a component of the...
This digital buffer was found in the November 1993 issue of Electronics Now. The power supply...
This configuration with FET and Unijunction can be found elsewhere on this site. The JFET admits...