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Oscilloscopes, electronics engineering industry news, how-to EE articles and electronics resources

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Meters & Testers

Swapfest May 2025: test equipment

June 2, 2025 By Martin Rowe Leave a Comment

Krautkrämer USM 2

The May 2025 gathering of the monthly electronics “Flea at MIT” swapfest featured an excessive number of test instruments. We break them down into oscilloscopes, meters, and signal sources. Click on any image to enlarge in a new tab. Oscilloscopes A Tektronix analog modular oscilloscope. The black bezel hides the model number. This unit has […]

Filed Under: Calibration, Communication Test, Featured, Meters & Testers, Oscilloscopes, signal generator, signal generators Tagged With: Hewlett-Packard, rigoltechnologies, Tektronix

Teardown: HP 8112A pulse generator

May 13, 2025 By Martin Rowe 1 Comment

This 50 MHz pulse generator was built as solid as a rock. It’s almost all metal. We take the unit completely apart and look at it from a system and board level. On a visit to the MIT swapfest in 2024, I came across an HP 8112A 50 MHz pulse generator. For $20, I brought […]

Filed Under: Bench Test, Featured, Instrumentation, New Articles, signal generator, signal generators, Video Tagged With: analogdevices, Hewlett-Packard, keysighttechnologies, NXP Semiconductors, texasinstruments

Modular system combines DMM with DAQ

March 27, 2025 By Martin Rowe Leave a Comment

DAQ3120

The DAQ3120 from B+K Precision lets you install up to three measurement modules to create a custom system for your bench. Most engineers have a digital multimeter (DMM) for basic measurements such as voltage, current, and resistance. Sometimes, however, you need the flexibility to add channels and log measurements without or without a computer. That’s […]

Filed Under: APEC 2025, Bench Test, data acquisition, data recorders, Events, Meters & Testers Tagged With: b&kprecision

APEC 2025 test equipment: oscilloscopes and probes

March 24, 2025 By Martin Rowe Leave a Comment

oscilloscope and probes in power electronics

Oscilloscopes and probes play a vital role for engineers designing and testing power electronics. Delivering electrical power to analog and digital circuits and systems is more than just DC measurements. That’s because nearly all power-converter circuits use switching techniques to maximize efficiency. Silicon carbide (SiC and gallium nitride (GaN) transistors, with their higher voltage and […]

Filed Under: Digital Oscilloscope, EMI/EMC/RFI, Featured, Meters & Testers, Power supplies, Video Tagged With: cleverscope, keysighttechnologies, rohdeschwarz, Tektronix, teledynelecroy, Yokogawa

Engineers use AI/ML to improve test

December 3, 2024 By Martin Rowe Leave a Comment

AI/ML used to test circuits

Engineers can use AI/ML to reduce test development time, analyze test data from manufacturing, automate visual inspection and calibration, and identify counterfeit components. Here’s how some do it. Testing takes too much time; just ask any engineering or production manager. Shortening test-development time can reduce time to market. Shortening production test time lowers manufacturing costs. […]

Filed Under: FAQ, Featured, Machine Vision/Inspection, Meters & Testers, Test software programming, Video Tagged With: Advantest, flukecalibration, Synopsys, teradyne, testeract, Virinco

Download our 2024 T&M Tech Toolbox

November 11, 2024 By Martin Rowe Leave a Comment

Keysight 14-bit oscilloscope

Everything needs testing and testing needs measurement. That’s why we assembled a collection of articles from Test & Measurement Tips into the 2024 T&M Tech Toolbox, a 56-page e-book in PDF format. We took some of the top articles from our recent archives to provide you with information that can help you with your job. […]

Filed Under: EMI/EMC/RFI, Featured, Meters & Testers, New Articles, Oscilloscopes

Flea market vintage test equipment, September 2024

September 17, 2024 By Martin Rowe Leave a Comment

The monthly “Flea at MIT” featured an abundance of test equipment. We even bought some.

Filed Under: Analog Oscilloscope, arbitrary waveform generators, Cathode Ray Oscilloscope - CRO, Digital Oscilloscope, digital phosphor oscilloscope, Featured, Meters & Testers, Power supplies, spectrum analyzer Tagged With: Hewlett-Packard, Marconi, Tektronix

How can I quantify a device’s nonlinearity? part 1

June 5, 2024 By Rick Nelson Leave a Comment

Nonliearilty

You can specify nonlinearity in parts per million or, especially for RF components, in terms of the 1-dB compression point or third-order intercept point.

Filed Under: Bench Test, Communication Test, FAQ, Featured, vector network analyzer, wireless test equipment Tagged With: FAQ

What’s a half digit and are they all the same?

June 3, 2024 By Jeff Shepard Leave a Comment

The most significant digit on a DMM’s display often doesn’t count 0 through 9.

Filed Under: Bench Test, FAQ, Featured, Meters & Testers Tagged With: FAQ, Fluke, keysight

Audio analyzer combines analog and digital domains

November 15, 2023 By Martin Rowe Leave a Comment

Audio Precision APx516B

The APx516B from Audio Precision comes with built-in analog I/O and a slot that adds wired or wireless digital I/O. With so many of today’s devices having audio capabilities, engineeers designing wired or wireless audio into a device need to verify audio quality. Audio Precision, well known for its audio analyzers, has introduced the APx516 […]

Filed Under: Analyzer, Audio, Bench Test, Featured, Meters & Testers Tagged With: audioprecision

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