My recent project: the K1EL Winkeyer USB, perfect keying via a USB port
My keyer with the K1EL K10 keyer chip.
30-Meter QRP CW transmitter by P. Wyns, ON7WP. At your request, a simple morse code SOUNDER The K8/K9 & K12 keyer chip, heat up your soldering irons!!!! this is a really nice site by K1EL. Look at my building project with the K8+ chip.