Automatic Electric LPC 82-55 Payphone Retrofit With AE Mini Network
Several years ago I purchased an antique payphone that was equipped with a blue Teltronics network board and an associated coin detection board. The coin relay had been removed and an ITT ringer was installed in its place. Although the phone worked, it never seemed to work as well as my other dial phones and I knew the old electronic boards were obsolete and a problem waiting to happen. Since the phone was long since modified from its original design, I decided to remove the pc boards and replace them with a 10 terminal strip (Cinch 10-140) and AE mini network. The resulting phone operates with a good balanced line load and is polarity insensitive. I have provided for download a pdf file which documents the conversion. It contains a large wiring diagram and photos. To download the file
NOTE: If you have come to this page because you own or are considering purchasing an antique telephone please be aware that phones, like most antiques, are generally more valuable the closer they are to original condition. If you are fortunate enough to acquire a pay telephone that still contains the coin relay and other original parts, try to keep it that way. It can still be made to work as a home telephone without the need to "hack up" the insides. I published this article because in my case, the phone I owned had already been gutted many years ago. Unfortunately there are many payphones out there like mine and the expense and difficulty of finding original parts makes full restoration nearly impossible. This retrofit is intended to help those in situations similar to mine. Use this information for what it is worth to you but proceed with the knowledge that anything you do to destroy the originality of an antique telephone will likely destroy some of its value.
NOTE2: I have noticed there are a lot of graphics available for Western Electric and Bell System phones but not that many high quality images for AE and Stromberg Carlson. I am no expert but I have created dial center, top sign, and center plaque, graphics for my own antique phone collection. The graphics in the photo on this page, the AE logo at the top of the page, and several other items are included in the file. Please note these are Adobe Photoshop CS2 source files which can be edited and manipulated with Photoshop. Photoshop is required to use these files. I have posted a zip file here for download. Enjoy! To download the file
THE ABOVE CIRCUIT AND TECHNIQUE SHOULD BE DONE AT YOUR OWN RISK. THE AUTHOR, THIS WEBSITE, NOR THE WEB HOST ASSUMES ANY RESPONSIBILITY FOR THE SAFETY OR ACCURACY OF THIS INFORMATION. THERE IS NO WARRANTY EITHER EXPRESSED OR IMPLIED THAT THIS METHOD AND PROCEDURE IS SAFE AND NO LIABILITY WILL BE BORNE BY ANY PARTY INVOLVED IN PREPARING OR PUBLISHING THIS DOCUMENT. THIS CIRCUIT AND SYSTEM SHOULD BE CONSIDERED EXPERIMENTAL AND IS OFFERED HERE FOR INFORMATIONAL PURPOSES ONLY.
USE AT YOUR OWN RISK!
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