Dual Power Supply (T519E)

This circuit is from a December 1956 Popular Electronics magazine. The circuit supplies two voltages to supply tube circuits.

Gain 1000 Sample and Hold (CB5960E)
This 80's circuit has been winning. It is a 1 000 gain sample and hold circuit and an offset...
Gain 20 LM386 Amplifier (CB25296E)
This circuit was found in the March 1990 issue of Radio Electronics magazine. The circuit can be...
KE1xF 168 MHz ARM Microcontrollers (COM129E)
November 2016 - NXP ARM Cortex microcontrollers for serial interfacing applications, NXP 32-bit...