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Posts Tagged ‘review’

Teardown and review of the new MHS5200A

Friday, March 10th, 2017

[embed]http://www.youtube.com/watch?v=TQXd7u4kPvs[/embed] Craig writes: I’ve gotten a lot of questions on the blog about the new version of the MHS5200A function generators available on eBay. Viewer Tolga was kind enough to send one in to me to review and tear down. Although some improvements have been made over the older models,...

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Datum/Symmetricom 8040 Rubidium frequency standard teardown

Tuesday, March 7th, 2017

Teardown: A look at the Datum/Symmetricom 8040 Rubidium frequency standard The 8040 used an LPRO 101 (low profile Rubidium oscillator) oscillator. Interestingly, there is a note written on the top of the LPRO case: “vibration test may have magnetized cover”. As you may know, Rubidium standards’s accuracy is very sensitive...

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Keysight MXA revision-b signal analyzer / Spectrum analyzer review, analysis & experiments

Monday, March 6th, 2017

Keysight MXA revision-b signal analyzer / Spectrum analyzer review, analysis & experiments from The Signal Path: In this episode Shahriar reviews the long awaited Keysight MXA Signal Analyzer (N9020B). The new X-Series Spectrum Analyzers from Keysight offer an entirely re-designed GUI interface which supports multiple tabs as well as multi-touch interaction....

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Teardown and analysis of microwave (26.5GHz) electro-mechanical step attenuators

Tuesday, February 21st, 2017

[embed]http://www.youtube.com/watch?v=IQZxvtEn4T8[/embed] Teardown and analysis of microwave (26.5GHz) electro-mechanical step attenuators from The Signal Path: In this short episode Shahriar takes a close look at a pair of Hewlett Packard microwave electro-mechanical step attenuators operating up to 26.5GHz. Mechanical attenuators offer excellent repeatability, low insertion loss and nearly limitless linearity. The...

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Teardown of a Peaktech 6225A

Tuesday, February 7th, 2017

Teardown and analysis of a Peaktech 6225A power supply from ElectroBob: I got a Peaktech 6225A power supply to power some things, as it seemed like a good deal, going beyond what one might find normally in these types of supplies: more display resolution and supposedly, lower noise. For this price,...

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4-20ma panel meter teardown

Thursday, February 2nd, 2017

Teardown of a 4-20ma panel meter from SteelCity Electronics: Below is a panel meter that has been used in some sort of industrial process. It was manufactured in 1980 and I’m not quite sure who the manufacturer was – the company’s logo is not easy to read but it might say, “Aumano”....

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Teardown, experiments and calibration of an Ist-Rees laser spectrum analyzer

Tuesday, January 24th, 2017

Ist-Rees laser spectrum analyzer teardown from The Signal Path: In this short episode Shahriar takes a close look at an Ist-Rees laser spectrum analyzer. This simple instrument is based on a continuously rotating diffraction mirror to detect various wavelengths. A trigger signal is used to denote the beginning of the scan...

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Tear down of a super capacitor

Tuesday, January 10th, 2017

[embed]http://www.youtube.com/watch?v=8Uxd00N3CRc[/embed] A teardown video of a 1 Farad super capacitor from Electronupdate: In a recent video on the tear down of an electrolytic cap a viewer was wondering what a super capacitor looks like. They have much more capacitance: 10,000 time more on average for the same volume. Surely this means the...

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Curtis 1231C-8601 500A PWM DC motor controller teardown

Monday, January 9th, 2017

Jay did a teardown of a Curtis 1231C-8601 500A PWM DC motor controller: The Curtis 1231c-8601 power board is relatively simple. It uses 18 MOSFETS in parallel to switch current from the motor- terminal back to the battery- terminal (the motor+ lead is already connected to battery+). The MOSFETs it uses...

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Solar battery charge controller teardown

Monday, January 2nd, 2017

[embed]http://www.youtube.com/watch?v=2vCQJtN3Obk[/embed] A teardown video of a solar battery charge controller from Electronupdate: A solar battery charger: one side goes to a Solar Panel, the other to a lead-acid battery. A charge controller allows the battery to be safely charged. Snagged off of Amazon. Seemed really cheap at $17.36. A look...

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Mastr III repeater teardown

Tuesday, December 27th, 2016

[embed]http://www.youtube.com/watch?v=grzvNoBKWuo[/embed] Kenneth Finnegan writes, "I recently purchased a pallet (!) of Mastr III repeaters for some parts. These are really unique radio systems since their so modular, so I thought you'd enjoy a video where I tear one apart and talk through its basic theory of operation." More details at Kenneth's...

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Teardown of a Vivitar Rapid battery charger

Wednesday, December 14th, 2016

Kerry Wong did a teardown of a Vivitar rapid battery charger for the NP-FW50 lithium-ion battery pack used in Sony A6000 digital camera: The circuit board itself though looks surprisingly clean and well designed. It does not use any dedicated lithium ion battery charging ICs however. Rather a MC34063A buck/boost...

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LED candle effect: Tear down and decap of a controller

Monday, December 12th, 2016

[embed]http://www.youtube.com/watch?v=ndXQex_spS8[/embed] A teardown video from Electronupdate: A dollar store item which implements a flickering candle effect using and LED. A look at the technology: linear feedback shift register or ROM based? Let's decap the controller and take a look at the silicon die to find out! More details at Electronupdate blog.

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GPS Disciplined Oscillator review and teardown

Wednesday, November 16th, 2016

Andy Brown did a teardown of a GPS Disciplined Oscillator: The design did actually surprise me. I was expecting to see an OCXO pulled from something else together with a modern GPS unit and an MCU to co-ordinate the synchronisation all mounted on a custom PCB. What we’ve actually got is...

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XBOX 360 GPU die decap: A look at the graphics processor silicon

Friday, November 11th, 2016

[embed]http://www.youtube.com/watch?v=vQ9OyubxoJQ[/embed] A teardown video of an XBOX 360 and analysis of GPU silicon die from Electronupdate. So, what makes an XBOX tick? One of the most notable parts will be the graphics sub system... and at the heart of it, the GPU. The GPU die is bonded onto a substrate...

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Tear down of a scientific calculator Integrated Circuit

Tuesday, October 25th, 2016

[embed]http://www.youtube.com/watch?v=_wza8DZtXuo[/embed] A detailed video teardown of a scientific calculator Integrated Circuit from Electronupdate. More info at Electronupdate blog.

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Review of NeoDen 4 pick and place machine with vision system

Saturday, October 1st, 2016

Ray Wang wrote up a review of NeoDen 4 pick and place machine with built-in vision system: Recently NeoDen released a new model called NeoDen 4 — it’s their first desktop model that has built-in computer vision system. The vision-based alignment makes it possible to place fine-pitched components with minimal manual...

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Teardown of a Static fieldmeter

Thursday, September 8th, 2016

A teardown of a Static fieldmeter from Kerry Wong: Static fieldmeters (or electrostatic fieldmeters) are typically used for non-contact measurements of the electrostatic field strength (usually in kV) of charged objects. These are highly specialized test instruments and most hobbyists probably seldomly have the opportunity of coming across one. So in this...

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Teardown and analysis of an Agilent 86109B Optical/Electrical DCA-X oscilloscope module

Wednesday, September 7th, 2016

Teardown and analysis of an Agilent 86109B Optical/Electrical DCA-X oscilloscope module from The Signal Path: In this episode Shahriar presents the inner workings of an Agilent 86109B optical/electrical DCA-X oscilloscope module. This particular model offers up to 50GHz of electrical bandwidth and an optical input capable of receiving up to...

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Bi-directional voltage level translator – Board house test

Wednesday, August 17th, 2016

Lukas Fassler from Soldernerd shares his experience with DirtyPCBs: I can think of a lot of situations where it could be useful. But the main reason for this project was to gain some experience with getting a PCB professionally manufactured by a board house. For several years I have done my own...

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