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June Singing Wires is now available in the members login area.

Telephone Collectors International is an organization of telephone collectors, hobbyists and historians who are helping to preserve the history of the telecommunications industry through the collection of telephones and telephone related material. Our collections represent all aspects of the industry; from the very first wooden prototypes that started the industry to the technological marvels that made the automatic telephone exchange possible.

If any of this interests you, we invite you to join our organization. Look around and see what we have to offer. Thanks for stopping by!

Telephone Collectors International
3805 Spurr Circle
Brea, CA 92823
714-528-3561

Sample from the June 2015 Singing Wires
Another Audichron Found and Saved
by Alan David


Recently, I was made aware of an electric motor similar to the ones on my 1971 Audichron STM for sale on eBay. Further inquiries revealed that the seller had not only a motor, but a complete machine, a box of spare record drums and parts, and best of all, the manuals that came with it. This machine was equipped not only with a time mechanism, but also had the temperature section, making only the third existing machine that I know of that has this feature. (Only the one at my MADhouse Telephone Co. is fully operational). A bit of research has revealed this history: This machine is a 1965 STM-100 and was installed at the Heins Telephone Company, located in Sanford, NC, in July of that year. They selected a male voice to do the announcements, the....

For the rest of this story along with many others, access to our Bonus Pages which contain many more photos, online access to all back issues of Singing Wires from 1986 on and many other benefits, join our club. It's easy and it's not expensive.

Sample from the April 2015 Switchers' Quarterly
The 1AESS Signal Distributor
By Chris Mattingly


The 1AESS, being an analog switch, has thousands of trunk circuits, all with relays that need to be operated and released during use. The device that does this is the Signal Distributor. I have covered this in a previous article, but I would like to go more in-depth as to how it works, particularly the relays that steer the pulses. Each Signal Distributor has 1,024 output points that can be wired to relays to operate and release them. Orders are clocked off the bus by solid state circuits. These circuits (flipflops) store the order, and the outputs drive mercury relays which drive wire spring relays that steer the pulses. Some mercury relays....

Our Journal for those interested in telephone switching systems, both old and modern. For the rest of this story and online access to all back issues, join our club and add the Switchers' Quarterly option for $5 a year more.

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