(ST-200A) AC Ratio Standard, 1:1 Ratio, Binding Post Termination, Center-Tapped Secondary


SKU: ST-200A

Product Description

TEGAM’s ST transformers are designed to meet the requirements of a wide variety of bridge circuitry, isolation and calibration applications.  The ST units can be used to provide a balanced output from an unbalanced source.  These transformers may be combined with TEGAM ratio transformers in bridging circuits, to isolate the null indicator.  The ST-200A features very accurate 1:1 ratio for isolation or phase inverting applications.  Units are also used with TEGAM Ratio Transformers to provide 180 degree phase shift to the input or output of the instrument in certain bridge applications. The ST-200A also has a center-tapped secondary .

Technical Specifications

  • Special Purpose Transformer
  • 1:1 Turns Ratio
  • Binding Post Termination
  • Frequency Range 50-10,000 Hz
  • Insulation 500-V Test
  • Open Circuit Ratio Accuracy at 400 Hz .005%
  • Input Impedence (with secondary open circuit) at 400 Hz, Greater than 250,000 ohms
  • Center-tapped Secondary
  • NSN: 5959-00-715-8591
  • Made in USA

Product Documents


Additional information

Weight 6 lbs
Dimensions 18 × 12 × 9 in
If you desire to have your shipment outside of North America, please contact customer service at 1-800-666-1010 or tegamsales@aei.com