sundance-communications.com/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems Before 1A2 and 1A1

I have a 464G, and I recently had it on ebay. I saw another one go for over $500, so not wanting to risk letting it go for pennies, i put a reserve on it (i think i set it at $400), but it didn't sell, only got bidded up to around $30.

For that I'll keep the thing for forever. I once sold on ebay a standard issue 10 key touch-tone 1A2 wall set for $100... complete with holes in the housing where someone thinking he was clever but a steel door with hinges and a lock to lock the dial.

It was so much more elegant to put a key switch (like an ignition switch) into a metal single-gang box near the phone, marked "Low Fuel Alarm Cutoff - Do Not Touch". The key switch opened the dial power lead, which was sent over to the box and back on a piece of I/W, rendering the dial inoperable until the key was inserted and turned.

My first phone boss was a manager at an apartment complex he hooked up a 1a2 to the tennis court lights and a few other things so all he had to do was dial an intercom number to turn things on or off. Any building I work in that was built before 1980 always has 1a2s hanging on the wall.

KJ, Those old rt or tt 1900's or 3600's have a latching contact when an intercom station is dialed.. I always knew that someone could perform up to 19 or 36 electrical commands. These were real cool units and ahead of it's time. Today, you could still set up paging zones with these units. Although, A-lead control might be needed.

Just like your boss had. He most likely activated another higher voltage relay from the Melco unit for the lights outside. It's neat to know that your boss did this. I never tried it but I knew it would work

I did something like that for a warehouse owner who didn't like climbing over machine's and welders and what-not to turn his shop light one. The solution involved me writing a few lines of code to set a paralell port I/O line high (apply voltage) for a second then turn off. This connected to an electronic relay which would then connect to the large power relay for the over-head lights. Plopped a phone by the entry/office door and he simply had to dial an extension to turn the lights on/off. The most exspensive part was getting the electrician to install the power relay.

Was also able to integrate the DVR set-up so that if it detected an intruder when it was "armed" it would turn the lights on in the shop and play dogs/sirens over the PA. I had to de-sensitize it because we kept finding cat burgurlars. Literally, the shop cats would set it off.

I guess the point is that the needs for this "creativeness" hasn't gone away, but just the stakes of what is involved are different. Life did indeed sound so much easier when it was all relays, resistance, inductance and capacitance.

"Life did indeed sound so much easier when it was all relays, resistance, inductance and capacitance."

It still is!

it's called a chip like an Lcc120 dual poll dual throw rated 12 volt relay. Even if it's rated for only 1 or two amps. Have fun and burn it up baby!

This is when tech support for station specialties was not unavailable.

The fun thing that old guys who are dead and the German Scientist who are dead is the question? Who was the president of General Eclectic in 1970?

As a 13 year old kid I worked for the president of GE gear plant. Such a Nasty concept.


1A2 taught me was that switches and relays are the same. Now it's just another function of modern electronics.

So, they landed on the moon with a apple IIe processor and and a hybrid version of a TT receiver radio application version of a melco?

If anyone needs the take down on electronics on the moon landing. Tell me how the shoved a school bus of electronics in the lunar helm in 1976?

Oh that's classified. Like A Yahoo?

Zeig