Hi,
I have a couple of the old GPO [1] Modem 2B
units....
Brings back memories....the 2B was my first modem back in '85.
Did you get it from 'Display Electronics'? They were advertising them at
the time. I bought mine at a radio rally, and were alsmost certainly the
end of the Display Electronics stock (I got some other things at the same
rally that had been advertised previously by the said company).
Incidentally, of my 2Bs as a 'GPO' badge on the front, the other has
'British Telecome'.
Somewhere I have a D1200A modem (I forget the GPO designation). That's
the same caxe, but with innards for a 1200 (transmit) 75 (receive)
system. In other words the host end of Prestel.
Lots of fun, but not as convenient as one which
responds to Hayes "AT"
commands.
Depedns on what you want to use it for :-)
I may still have some documentation somewhere if it's any use to you?
I'd be interested in knowing what you've got, certainly...
-tony