Re: The joy of FORTRAN

scott@slp53.sl.home (Scott Lurndal) writes:

rbowman <bowman@montana.com> writes:

On Sat, 8 Mar 2025 00:21:15 -0500, c186282 wrote:

>

Relay logic was sort of fun. You were building state machines with relays,
Eagle Signal electro-mechanical timers, limit switches, and so forth. I
never did it but even more fascinating were some of the complex machines
that were all cams, levers, gears, and springs except for the drive
motor.

>
I use and repair relay logic even in these digital times:
>
https://pinside.com/pinball/machine/target-pool

That Target Pool looks a bit like my Jacks Open.

I bought the Jacks Open and realized that as a home game, scoring special
just awarded credits.  Since we were playing at home credits were
meaningless.  The game had no Extra Ball feature.

I figured out what kind of relay I needed, drilled a hole between the
flippers put a light there, and wired in the relay.  I was always struck
at how much like programming the wiring and relays were like.  I still
play the game.

--
Dan Espen