This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used as a basis for modern designs with equivalent transistors.
This oscillator takes advantage of the 2000 ohms headphone inductance as the oscillator circuit coil....
July 1017 - Maxim MAX17290 and MAX17292 PWM boost controllers can now be purchased from Mouser...
This interesting circuit found in an old documentation uses neon lamp to indicate the percentage of...