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Triad's HS-56 Impedance Matching Audio Transformer provides the durability and precision required in today's demanding designs. Mu-Metal case construction for magnetic field immunity and up to 95 dB Hum reduction. Ample turns ratios to accommodate source to load impedance matching. Wide range power handling capacity to deliver full power without distortion within ± 3dB. Applications include: Impedance matching, signal pre-amplification, inter-stage isolation, signal level step up/down. Dependable hermetically sealed construction with low temperature rise and high heat conductivity.

Unit of Measure

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Specifications

Applications

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Universal Line to Universal Line.

Note for Secondary Impedance

 N/A Balanced Center Tap. (600 and 250 Ohm)

Frequency Response Range

 N/A 10 to 30000 Hz

Shielding

 N/A P-3 - Two nickel alloy shields interleaved with one heavy copper shading ring 70 db. reduction in pickup.

Case

 N/A GP-4

Electrical Specifications at 25 Degree Celsius (ºC) Temperature

Primary Impedance

 N/A 62.5 Ohm150 Ohm250 Ohm600 Ohm

Secondary Impedance

 N/A 62.5 Ohm150 Ohm250 Ohm600 Ohm

Maximum Input Level

 N/A 20 dBM

DCR 1-2

 N/A 9.46 Ohm

DCR 2-3

 N/A 16.60 Ohm

DCR 4-5

 N/A 17.80 Ohm

DCR 5-6

 N/A 10.71 Ohm

DCR 7-8

 N/A 8.40 Ohm

DCR 8-9

 N/A 15.10 Ohm

DCR 10-11

 N/A 19.70 Ohm

DCR 11-12

 N/A 11.80 Ohm

RoHS Compliance

RoHS Compliance

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As of manufacturing date February 2005, all standard products meet the requirements of 2011/65/EU, known as the RoHS initiative.

Additional Information

Additional Information

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Avoid redesign - Use Triad HS and HSM transformers in military prototypes

Triad HS and HSM series transformers are designed to meet MIL-T-27 requirements. Most of these transformers use standard MIL-T-27 case sizes. Exceptions are GP cases or any cases showing a Bw dimension, which may be classified as MIL-T-27 'YY' cases. Equipment using these transformers need not be redesigned to submit for military approval. The basically good design factors which are necessary to meet MIL-T-27 standards for performance ensure longest life in any class of service.

These transformers are permanently marked with electrical and test data as specified in MIL-T-27. All are "Climatite" treated, use sturdy TRIAD terminals and are beautifully finished in gray enamel.

Note

Note

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Graph data was taken on a random sample using an Audio Precision Model APX555 Audio Analyzer.