Category Archives: Teardowns

Teardown, repair & calibration of a Valhalla 2701C Programmable Precision DC voltage standard

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A teardown and repair of a Valhalla 2701C Programmable Precision DC voltage standard from The Signal Path: In this episode Shahriar examines a faulty Valhalla 2701C Programmable Precision DC Reference instrument. Valhalla Scientific’s 2701C Programmable Precision DC Voltage Calibrator delivers ultra-precision, ultra-stable … Read more

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Keysight EXA Signal Analyzer/Spectrum Analyzer review, teardown & experiments

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Another video review from TheSignalPath, Keysight EXA Signal Analyzer/Spectrum analyzer: In this episode Shahriar reviews the Keysight EXA Signal Analyzer / Spectrum Analyzer (N9010A). The X-Series Signal Analyzers and Spectrum analyzers from Keysight are compared against each other. The EXA … Read more

Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments

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Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments from TheSignalPath: In this episode Shahriar takes a close look at the top-of-the-line Rigol DSA875-TG 7.5GHz Spectrum Analyzer. This unit which, offers a built in tracking generator … Read more

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EDC/Krohn-Hite MV216A DC voltage standard teardown and Tempco measurement

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Kerry Wong did a teardown of the Electronic Development Corporation’s (acquired by Krohn-Hite) MV216A battery/external powred DC voltage standard: In this blog post, we are going to take a look at Electronic Development Corporation’s (EDC, acquired by Krohn-Hite in 1998) MV216A … Read more

Teardown, repair & analysis of a Rohde & Schwarz FSH3 3.0GHz portable spectrum analyzer

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A teardown and repair of a Rohde & Schwarz FSH3 3.0GHz portable spectrum analyzer from The Signal Path: In this episode Shahriar examines a faulty R&S FSH3 100kHz – 3.0GHz Portable Spectrum Analyzer. This exceptionally dirty unit does not power … Read more

Teardown & repair of the Siglent SHS810 100MHz 1GS/s portable oscilloscope & multimeter

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Here’s a teardown & repair of the Siglent SHS810 100MHz 1GS/s portable oscilloscope & multimeter from The Signal Path: In this episode Shahriar examines the failure of a Siglent SHS810 100MHz 1GS/s portable oscilloscope and multimeter. The instrument’s multimeter inputs … Read more

Teardown, repair and analysis of an Anritsu MS2721A 7.1GHz portable spectrum analyzer

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Teardown, repair and analysis of an Anritsu MS2721A 7.1GHz portable spectrum analyzer by Shahriar of TheSignalPath: In this episode Shahriar takes a look at an Anritsu MS2721A portable spectrum analyzer which does not completely boot up. After displaying the message … Read more