Progress! I've received a reply from Vic Brown.
I got stuck thinking the "gear wheel" was for some gear mesh and couldn't visualize the disc/gear connection.
You mentioned my non-electronics background. I do feel comfortable in soldering and following circuit design. I think my discomfort stems more from not knowing "what the pieces do". For example, I have no clue what a 4046 chip is/does. I'm amazed at how folks discuss things like PMT, 931A, dome, opto-fork, HC', 'AC', 'HCT' or 'ACT, etc. It's an area I know nothing of, which I why I'm overly sensitive (analysis paralysis) of what parts to order. Again, I'm assuming the Club shop 4046 ("CD4046") is what I need.
I may be getting into water that's much too deep for my background. I built my first "radiovisor" in 1964 from a photograph of one of Jenkins's models. I used two cardboard discs mounted on axles on each end of a 120v motor, a large plate neon bulb, and an audio amplifier. Felix the Cat magically appeared! It's the "integration" of the Handbook mechanics into the mystery of electronics that's stopping me.
Unfortunately I've been getting a "no response from server" for http://www.nbtv.wyenet.co.uk/ all morning, so I can't refer directly to the details in some of the schematics.
Once I can again see the schematics and note the parts I'm puzzling over, I can ask Vic if those are the parts available from the Club, and decide if I can handle this.
Thanks all.
Tom