Technician recommended replacement option would be the AP8275
Chromstar 2000 Series Antenna Pre-Amplifiers
Features 75 or 300 ohm input for convenience and easier installation. Universal housing can be used with any off-air TV antenna. Made of high impact ABS material, mast mounted for easy installation. Flexible polyethylene boot covers on 75 ohm; hinged cover on 300 ohm models keep connections clean, dry, weather-protected. Zinc-plated steel hardware; all mounting hardware included.
Transistor burn-out virtually eliminated with specialized circuitry featuring fast recovery diode that protects against lightning-caused pulses. Operating temperatures -40° to +140° F. 117 VAC UL and CSA approved power supply is included. (Does not include F-connectors.)
NOTE: Preamplifiers and/or amplifiers only amplify the signal your antenna receives. They cannot extend the receiving range of an antenna or help pull in signal. Also, DO NOT use the higher gain models within 35 miles of your transmitters.
U.S. Patent No. D335,887, D358,365, 5,515,240 (Power supply housing design)
Product Reviews for Winegard Chromstar 2000 Series UHF Pre Amplifier (AP4800)
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Average Review (4 reviews):
Recent Review: Bigwillie - Princeton, eton WV - 3/28/2013 A Great Product
A Great Product Bigwillie - Princeton, eton WV - 3/28/2013 I found this to be one of the highest gain UHF preamp on the market.I live about 100 miles from Roanoke and I can pick up all their UHF digital TV stations at my home with this preamp.Without it I get nothing.I have used it about a year now with no problems....
The price is great for the gain 28 db Whoo Da Poo Da - Texarkana Texas, Texarkana Texas - 3/28/2013 If you don`t have any VHF stations this is the amp to purchase.
Good performer David - Ortonville, nville MI - 3/28/2013 Long term reliability is the big concern since it is mounted high atop the mast. So far all is well.
AP4800 WORKS GOOD JMOS - PIMENTO.IN, PIMENTO.IN - 3/28/2013 RECEIVE GOOD SIGNAL FROM INDIANAPOLIS ON UHF EVEN IN THE MIDDLE OF THE DAY APPROXIMATELY 80 MILES AWAY OCCASIONALLY I RECEIVE ST.LOUIS AT NIGHT 100+ MILES WORKS GREAT!
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