A Dutch hamradio station in a bookbinding workshop

K12 Keyer

Based on a kit by K1EL.
On top left controls to set speed (wpm)
On the right the message slots
The command key (red one) is on the front. What a mistake. Pushing the key moves the keyer away from the pusher, not very handy. So when you are planning to build a keyer my advice would be: position push-keys on top. The keyer will stay in place.
Only the outside is shown: inside it’s a mess!