[BC] AP 10 Bells Survery

[Ron Cole]

The Extel was a drop in replacement for the Model 15.
So it uses Baudot code, aka 5-bit ITA2 code.

I don't remember but I'm about 70% sure it was a 60ma loop.


Ron



On 6/22/06, Mark Humphrey <mark3xy at gmail.com> wrote:
>
> Does anyone here know the specifics of the Extel data protocol -- in
> other words, does it want to see Baudot,  7-bit ASCII, or what?
>
> There's an abandoned Extel sitting on the shelf at one of my client
> stations... so I'm thinking of asking to take it off their hands and
> building a interface circuit to print RTTY.
>
> The same station also has a classic old Type 15 in the closet...
> tempting, but ya gotta draw the line somewhere.  If anyone is
> interested in that, let me know your offer.  You'll pay the freight,
> of course.
>
> Mark
>
> On 6/22/06, Bruce Potterton <bpotterton at ksgn.com> wrote:
> > Yes, UPI used bells.  I designed a bell decoder so that when more than 4
> > bells fired it would light a light in control room studio.  The Extell
> > printer was down stairs.
> >
> >
>
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