Hi All:
As Nortel grew out of Northern Electric, I guess this is an appropriate forum to ask this question in.
Back when Northen Electric/Telecom/Nortel was manufacturing the Centurion, they offered mostly Prepay Centurion stations. I have two of these.
However, they also manufactured semi postpay Centurions. I have recently come across one which I suspect may be one of these. The model number was QSD401A6-76 ( as near as the number can be read). It is a dial version of the phone.
Instead of a coin relay mounted on the hopper, there is a board numbered P0523364 on a formed original bracket. This board contains an NE 2579A
transformer, QHP99A inductor, transistor, diodes, etc. and cluminates in a cord which is designed to plug in where the relay would normally plug.
It appears to be a sensor to detect coin drops. On the phone, a setscrew sets the vane to drop only into the coin box.
Can anyone confirm that this would be the semi postpay version of the Centurion, and even better, would anyone have a scan of the NEP for the board or for the phone?
dhunter@islandregister.com --
The Telephone on Prince Edward Island:
https://www.islandregister.com/phones/phones.html The Telephone Museum of Prince Edward Island:
https://www.islandregister.com/phones/museum.html Free Admission - Call (902) 651-2762 to arrange a visit!