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Posts Tagged ‘review’

Inside card sorters: 1920s data processing with punched cards and relays

Monday, May 2nd, 2016

Ken Shirriff did an in-depth write-up of the punched card sorter: Punched card sorters were a key part of data processing from 1890 until the 1970s, used for accounting, inventory, payroll and many other tasks. This article looks inside sorters, showing the fascinating electromechanical and vacuum tube circuits used for...

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Posted in vintage | No Comments »

Elektor 500ppm LCR meter case tips

Friday, April 1st, 2016

NopHead wrote a blog post review of Elektor 500ppm LCR meter: I recently bought a 500ppm LCR meter from Elektor because I didn't have anything for measuring inductors or the ESR (equivalent series resistance) of capacitors, both of which are important for modern electronics, particularly switch mode regulators that have become ubiquitous....

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Posted in tools | 5 Comments »

FLIR MR160 thermal imaging and moisture meter review, teardown and experiments

Monday, January 11th, 2016

Another great video review from TheSignalPath: FLIR MR160 Thermal imaging and moisture meter review, teardown & experiments In this episode Shahriar takes a close look at the FLIR MR160 Thermal Imaging and Moisture Meter. Featuring Infrared Guided Measurement (IGM) technology powered by a FLIR Lepton® thermal imaging sensor, MR160 helps you...

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Posted in Teardowns | No Comments »

CSI Premier 75W and Hakko 936 solder station teardowns

Thursday, January 7th, 2016

Todd Harrison did a teardown of the CSI Premier 75W and Hakko 936 solder station: I did the teardown of the CSI 75W solder station as well as the Hakko 936. The Hakko of course had all analog circuits using operational amplifiers and potentiometers as well as a temperature sensor in the...

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Posted in Teardowns | 4 Comments »

DirtySLA first impressions

Tuesday, December 29th, 2015

new299 tried out dirtySLA and did a quick video review.  

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Posted in Videos | 1 Comment »

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

Monday, December 28th, 2015

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 is a general purpose spectrum analyzer with extensive applications. The...

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Posted in Teardowns | No Comments »

Control your Arduino over the Internet using Blynk

Saturday, December 26th, 2015

John Boxall from Tronixstuff has written an article on using Blynk with Arduino: There are many ways of remotely-controlling your Arduino or compatible hardware over the Internet. Some are more complex than others, which can be a good thing or a bad thing depending on your level of expertise. Lately we’ve become...

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Posted in Arduino, tutorials | No Comments »

X-Carve CNC mill build log & review

Monday, November 30th, 2015

Jeremy Blum writes: A few months ago, I built and reviewed the Shapeoko2 CNC mill from Inventables. Now, I’m back to review its successor, the X-Carve. The X-Carve features new-and-improved mechanics, a much sturdier spindle mounting system, and a myriad of other improvements that make it easier than ever to...

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Posted in tools | No Comments »

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

Friday, November 20th, 2015

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 for the full frequency range, has a portable form-factor. I...

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Posted in Teardowns | No Comments »

Radio thermostat CT-50 review and install

Friday, November 6th, 2015

Felix of LowPowerLab writes: I mentioned before that there’s added support for HTTP requests in the gateway interface. That allows using things like wi-fi thermostats, and this story is a review of how I did just that. I wanted to integrate the home thermostat into the Moteino IOT Framework Gateway...

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Posted in repair | No Comments »

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

Thursday, August 6th, 2015

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 on and is missing a power supply and battery. After...

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Posted in repair, Teardowns | No Comments »

Review: Dirty Circuits Done Dirt Cheap

Monday, July 20th, 2015

DirtyPCBs detailed review by Gee_Rabid_Inventor:  Often design and research is and expensive business, especially when dealing with technology that your are unfamiliar with. A big proportion of this is PCB manufacture and I have spend a few years looking for a low cost reliable method for PCB production. The most...

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Posted in DirtyPCBs.com | 2 Comments »

RFM26W Breakout Board – First DirtyPCB manufacturing service test

Tuesday, June 23rd, 2015

Kai Bader's first PCB manufacturing run with DirtyPCBs: The PCBs are well produced, no “dirt” besides a bit of dust from my side. A few tiny scratches that did not affect the board. The silk screen is clearly readable. Details at Kai Bader's blog.

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Posted in DirtyPCBs.com | 3 Comments »

Shapeoko2 CNC Mill build log & review

Wednesday, May 27th, 2015

Jeremy Blum's review and build-log of the Shapeoko2: I bet you thought that I only had room in my heart for one at-home manufacturing technology! 3D Printing is still my first true manufacturing love, but I’m very excited to share that I’ve started experimenting with CNC milling, too, thanks to the...

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Posted in project logs | No Comments »

Mikey’s first DirtyPCB experience

Wednesday, May 13th, 2015

Mikey shares his first impressions with DirtyPCBs: Yes, exclamation mark and lots of yelling! The PCB’s has arrived, lets have a look at them. At first glance they look very good, silk screen is fine, both on top and bottom. The outline of the board feels smooth with a sharp...

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Posted in DirtyPCBs.com, PCBs | No Comments »

Amrel PPS-2322 programmable power supply teardown

Friday, May 8th, 2015

Kerry D. Wong did a teardown of a Amrel PPS-2322 programmable power supply: I picked up an Amrel PPS-2322 programmable power supply from eBay recently. You probably have not heard of the Amrel brand before as American Reliance (Amrel) no longer makes power supplies nowadays. Its power supply division was acquired by...

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Posted in power supply, Teardowns | No Comments »

Week in (p)review April 17, 2015

Friday, April 17th, 2015

Here’s a summary of major developments over the last week. Free PCB Friday is coming up soon. CNC3020 assembled in 30 minutes CNC3020 milling machine arrives LED strip testing with Bus Pirate Jason Mann, kubatyszko and jure94 built a free Bus Pirate v3.8 PCB XC2C64A CPLD development board and Bus Pirate v3.6...

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Posted in week in review | 1 Comment »

DirtyPCBs two layer ENIG PCB closeups

Friday, March 27th, 2015

DirtyPCBs two layer ENIG PCB review by manis404: The standard service is $14 for 10 boards. You can have the pads ENIG finished for $15 more, which brings the total cost to $29 for 10 boards, shipped. It is still an excellent deal. The quality is excellent too, as the...

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Posted in DirtyPCBs.com | No Comments »

KF5OBS’ Dirty PCBs review

Friday, March 20th, 2015

KF5OBS' first PCB manufacturing run with Dirty PCBs: So what’s the quality of the board? For $ 33 delivered I naturally didn’t expect much. But I was wrong. First off, I received 12 PCBs. So the Protopack definitely worked in my favor over ordering a guaranteed 10 pack for twice...

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Posted in DirtyPCBs.com | No Comments »

Samsung Galaxy S-Pen waveform capture

Tuesday, February 17th, 2015

Kerry Wong writes: I was quite intrigued by the S-Pen that came with my Samsung Galaxy Note 4. According to the specifications listed on Samsung’s site, the S-Pen supplied with Samsung Galaxy Note 4 he S-Pen supports 11 bits (2048 levels) of pressure levels and can be detected at a...

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Posted in gadget, RFID | 1 Comment »

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  • Geert Jordaens: I'm not sure what kind of licensing I have to add since it is a fairly straight forward implementation of the adaptive Huffman Decoding. For...
  • erich: For anyone interested, I've added some c++ code for adaptive huffman decoding in the git repository.
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