Established in 1998, China Dianshen Electric Co., Ltd. is a professional isolation transformer manufacturer and isolation transformers design of electric and electronic products. Together with the European 'CE', 'CCC', GS/EMC/LICE/UL/CSA, and 'CB' (IEC) certification that we have received for various series. Currently, our custom isolation transformer product series are being exported worldwide. Our pursuit of first-rate quality, competitive and cheap isolation transformers prices and comprehensive after-sales services offers both potential and long-standing clients confidence in our company.

Helps reduce 60Hz hum introduced into your home entertainment system through your cable connection. This is a common problem when hooking up a powered subwoofer to your home theater system. This product is completely passive and will not affect your cable tv signal strength. Provides isolation to break ground loops in cable systems. In extreme cases the use of a grounding block may also be necessary. Only 1.5" long and connects in-line between your tv and the cable line. Simple male to female "F" connector installation Operating frequency: 100 MHz to 1 GHz. Note: Interferes with digital cable and satellite TV. They were stored in a sheltered outdoor location for an extended period and some have very slight surface corrosion but are otherwise in new condition. Details for the GISD250 transformer are available here. Approximate dimensions: 4"x5"x5", about 10lbs.

Complete line isolation noise filtering and surge suppression Supports combined loads up to 500 watts continuously Faraday shield offers 100% isolation from input AC line Removes EMI/RFI noise, utility switching transients and background spikes Circuit breaker overload protection and lighted power switch Rugged all-metal housing with 4 widely-spaced outlets and 6' power cord 5 3/4" W x 6 1/4" H x 9 1/4" D. 1500V RMS test voltage, rated 250VA. These transformers are new/old stock and are all in new or very good condition. An Isolation transformer is the best way to establish a new neutral-ground bond, in order to correct common mode and other grounding problems. A transformer can provide conversion of a Delta system (3 wire) to a Wye connected (4 wire) system.

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