Check the listing for details. Vintage NuTone 475-01000 Intercom Amplifier Apartment or House Five Wire.. Condition: Seller refurbished. Listed at 99.00 USD. This vintage NuTone intercom amplifier is perfect for use in apartment or house intercom systems. With its five-wire design, it provides clear and reliable communication for any business or industrial setting. The brand NuTone is known for its quality products, and this model, in particular, is a reliable choice for intercom systems. The amplifier is designed for use with the NuTone 475-01000 intercom system and is ideal for those in need of access control equipment for their facility. Its compact design makes it easy to install and use, while its clear sound ensures that communication is always crystal-clear. Whether you're looking for an intercom system for your business or industrial setting or for your apartment or house, this vintage NuTone intercom amplifier is the perfect choice.