6W Morse-Code Transmitter 7Mhz Circuit

Posted on Feb 13, 2013

The vacuum tube is still alive and useful in some applications, as in this CW transmitter, The circuit was built in old-fashioned breadboard style on a wooden base. Old table radios are a good source of parts for this circuit. V3 is used as a ballast resistora 75- or 100- 5-W resistor could be substituted. LI is 15 turns of hookup wire on a form 2 long.

6W Morse-Code Transmitter 7Mhz Circuit
Click here to download the full size of the above Circuit.

L2 is 7 turns of the same wire. L2 is wound over LI. Be careful as up to 160 V is present onYl and V2.

Leave Comment

characters left:

New Circuits



Popular Circuits

stepper motor controller circuit
op amp 6 line audio mixer circuit
Another type of level controller internal circuitry JYB