Now, there's a real antique. Did this one generate clouds of smoke?

Really showing my age, in 1952 I installed a pair of these in a
facsimile link for sending weather maps between the local forecast
office and the airport operations room. Just as well we did not have
smoke detectors in the fire alarms then, else the place would have been
evacuated several times a day.

To get nearly back to the subject, Software, after a spell with machine
language, then Assembler, I moved to Pascal, then to Forth and have
never used Basic. Now in 2012 it's Lazarus (Pascal), playing with
Python but not really learning it and re-writing a local Group's Access
databases in Filemaker so as to run on a Mac system.

25 Hz power systems, gosh! Parts of Auckland (NZ) were on 200V DC up
until the 1940's but generally everyone else started on 50 Hz.