Dual Voltage Follower (CB6121E)

This circuit is from a 1965 Electronic Design. The transistors may be general purpose and the power supply must be symmetrical.

| Clique na imagem para ampliar |

Variable Frequency Ring Oscillator (CIR113E)
An way to change the frequency of the previous oscillator (CIR112E) is to add a variable capacitor in the...
Simple Preamplifier II (CB932E)
This circuit uses a JFET, which may be of the type BF244 or BF245 and a PNP bipolar that may be...
Wireless Microphone (CB25550E)
Designed to operate with a video camera, this small transmitter was found in the February 1993...