Re: Alarm system transformer + power supply (would both go bad atonce?)

["Michael A. Terrell" <mike.terrell@xxxxxxxxxxxxx>]

The Daring Dufas wrote:
>
> On 12/5/2013 6:03 AM, Michael A. Terrell wrote:
> >
> > The Daring Dufas wrote:
> >>
> >> Back in the 70's I made my own circuit boards on the kitchen table so I
> >> could build my own solid state alarm controls. Most of what was around
> >> was the old reverse polarity on a pair going directly to a central
> >> station like the police/fire department. ^_^
> >
> >
> >
> >    That depended on the type of equipment at the local CO. Touch Tone
> > phones had to be modified to work with the 1920s designed CO equipment
> > in my home town before the DTMF to pulse converter would work.  They
> > really went whole hog in their conversion. Only 100 DTMF lines were made
> > available, out of 30,000 numbers.
> >
> >     We looked into manufacturing some alarm equipment, but the
> > manufacture's liability insurance was over $1,000,000 a year at that
> > time.
>
> Well heck, what can I say, I grew up in Alabamastan. The most advanced
> thing to come out of my province was this little space program thingy. ^_^


  It didn't 'come out', it ESCAPED!!!  ;-)

   I spent a couple decades at Ft. Rucker, but the US Army claims it was
only nine months. :(


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