Simple CW Keyer

This is a homebrew IC keyer using a 7400, a 7473 and two 555s. Here's a similar schematic.

Simple CW Keyer
The difference is that I used two 555s instead of one 7413 for the clock and tone generator functions.

Simple CW Keyer - inside view
The paddle is made of spring strip, silver contacts, nuts, screws and bakelite pieces. The enclosure is also homebrewed.