Institute Newton C. Braga

Circuit Bench

Two Transistors Amplifier (CB918E)
We found this two stage transistor amplifier circuit using RC coupling in a magazine published in...
Unijunction and XTAL Relaxation Oscillator (CB13854E)
The frequency of this unijunction oscillator is determined by the crystal whose maximum frequency is...
PLL detector or carrier detector XR2208 (CB24553E)
This circuit was obtained from the April 1978 Radio Electronics magazine. The other circuit is a...