P.S.&Transformer supplier
ECU Electronics Co.,Ltd. is one of the leading power supply and transformer manufacturers in China.Our product lines include power supplies,toroidal transformers,R-transformers and special components.
http://www.ecu.com.cn

Free Transformer Tools
KVA, amps and Volts calculator. Transformer glossory, conversion factors from Alfa Transformer Company.
http://www.alfatransformer.com/freetools.htm

J. Combo Electronics Limited
Transformer manufacturer in China specializes in Lighting Transformer, Toroidal Transformer, Power Supply, Adapter, Ballast and Debuzzing Coil. UL, TUV, VDE, CSA, GS, BS, and CCEE approved. ISO 9002 certification. Custom design are welcome.
http://www.jcombo.com.hk

Siddhivinayak Enterprises
Transformer, Instrument Transformers, High Voltage Testing, Voltage Transformer, Testing Laboratory, Oil Immersed Instrument Transformers, Mumbai, India
http://www.siddhivinayakenterprises.com

Success Electronics & Transformer Manufacturer Sdn Bhd
Manufacturer of auto transformer, power transformer, automatic voltage stabilizer, ballast, electronic ignitors and battery chargers.
http://www.success.com.my

Suenn Liang Electric Co.,Ltd.
Specializing in manufacturing transformers. Main products: single and three-phase transformer, series/AC reactor, multi-voltage control box transformer, and electric transformer.
http://www.suenn.com/

DER EE Electrical Instrument Co., Ltd.
Manufacturer of meters - Meters, including clamp meter, digital multimeter, analog panel meter and panel meter, are made for precise and accurate measurement by Deree Electrical Instrument.
http://www.deree.com.tw/

Transformer Measurements
How to determine those pesky specs for your new transformer.
http://home.earthlink.net/~jimlux/hv/xfmrmeas.htm

Transformer Protector Corp.
Transformer ProtectorTM Technology: The only proven solution to transformer fires and explosions. The Transformer Protection device used by TPC reduces the incidence of transformer fires and explosions by means of advanced rupture disk technology.
http://www.transproco.com/

Transformer Measurements
How to test that transformer.
http://home.earthlink.net/~jimlux/hv/xfmrmeas.htm