neazoi
Advanced Member level 6
Hi, I want to see how simple a keyer can be made, sensitive enough to be driven by the audio of the PC sound card, but powerful enough to switch power into a 300-500mA 12v requiring CW transmitter.
My goal is to have the least discrete components possible, I do not mind if they are SCRs of custom-wound toroids or small commercial audio transformers.
The circuit to key is this **broken link removed** and I do not mind about "key clicks" in this simple circuit.
My goal is to have the least discrete components possible, I do not mind if they are SCRs of custom-wound toroids or small commercial audio transformers.
The circuit to key is this **broken link removed** and I do not mind about "key clicks" in this simple circuit.