Cw Keyer

Posted on Jun 22, 2012

This electronic keyer uses four ICs (five, if the optional sidetone oscillator is desired) and operates from dc sources of 9 to 15

Cw Keyer
Click here to download the full size of the above Circuit.

V. A 2N2222 is used as a keying transistor. If isolators or more power handling ability is desired, a 6-V relay can be keyed with the 2N2222 and the relay in turn can be used to key the transmitter.

Leave Comment

characters left:

New Circuits



Popular Circuits

Frequency Shift Keyer
Closed-Loop Peak Detector Circuit
Simple Analog to Digital Converter (ADC)
How to display text on 16x2 LCD using AVR microcontroller (ATmega16)
Simple TV Transmitter Circuit
2N6764 FET Derating Curve
Functional Block Diagram for AD524 pin and internal circuit