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NuTone Intercom Photo Gallery > 1973 NuTone Model 2561 Master Station  > 1973 NuTone 2561 Avocado Master Station Chassis Information

1973 NuTone 2561 Avocado Master Station Chassis Information

Stamped on the chassis is all of the important information about this 2561 Master station.

The most important information (for the guy who's repairing it) is the Chassis Number, this unit is a 561L or more commonly a "L" chassis.

The Date Code is B73T, which translates into February 20, 1973 

The data sticker has the serial number printed on it.  This unit is #61-130486.  The "61" in the serial number is not the date of manufacture, all Model N2561 - N2561 through the last 2561 - 2562 had serial numbers that began with "61"