Decay is based on a 14538 which is a dual monostable
The schematics are out there, just not great quality as they were originally drawn on graph paper which after multiple photocopies doesn't show up too well, but they are (just about) readable.
The schematics are out there, just not great quality as they were originally drawn on graph paper which after multiple photocopies doesn't show up too well, but they are (just about) readable.