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In your 1960s manual you describe Wiring Devices which lists all the parts for low voltage installations for the home and small businesses.I installed a low voltage system in my home in 1960 which is still in service today. To date, everything is still working. I'm thinking of selling my home and want to be able to tell the buyer where parts can be found. I visited the local GE supplier and they still have some of the parts, such as the transformer and the relays. They tried through GE Supply to find me the Selenium Rectifier Cat.No. RA-9 (SELENIUM RECTIFIER HAS 7-INCH LEADS) BUT GE SUPPLY has to record of this part. Any suggestios? Might retirees have a hobby of saving old parts?

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I am providing a very good web site (link provided)for you to look through. I have personally had a job or two troubleshooting a low voltage system for a customer. It is not easy and requires some good meter skills to say the least. The Selenium rectifier you mention is nothing more than a DC power supply for the low voltage relays the system uses. The whole premise of the low voltage control was the master control panel. This offered a home owner (in a large home) the ability to control all the lighting in the home from the master panel location. Now days, with all the new technology, companies like Lutron have RadioRa which does the same thing with radio frequency controlled switches throughout the home. Read the info I sent and you will get a clear picture of the old style 'low voltage system'.

Posted on Sep 29, 2009

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