The HP 3551A Transmission Test Set is ideally suited for measurements on voice, program, and data circuits. Designed for use with North American Bell standards and is capable of …

3551A Transmission Test Set Operating and Service Manual. Part Number: 03551-90001 (Jan76). The 3551A is no longer sold by Keysight; this manual is provided for information only. …

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Designed for use with North American Bell standards and is capable of measuring attenuation distortion, loss, message circuit noise, noise-with-tone, noise-to- ground, and single frequency …

2022年5月27日 · HP 3551A A2 sev­en seg­ment LED dis­play board. The A2 dis­play board uses red sev­en seg­ment LED dis­plays and sup­ports 3.1 dig­its and +/- polar­i­ty indi­ca­tors. It is used …

Use the “Contact an Expert” link at the top of this page to learn more about your calibration & repair services or replacement options. If this product's status is "Obsolete": You can receive …

2023年12月14日 · Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor …

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2018年6月22日 · Balanced load for testing/calibration of HP3551A Thank you!

Measures 2 & 4 wire balanced circuits and includes balanced impedances of 135, 600 and 900 ohms. Ideal for measuring attenuation distortion, message circuit noise, loss, noise-with-tone, …