Scientific (10)

Velocity Servo Headphone Amplifier - a sensor-less motional feedback USB dongle

For online purchasing visit https://www.ebay.com/itm/317262327698. For test listening, send us message on eBay, we can ship you a loaner unit you for evaluation. Here we are announcing a one of a kind product for the high end audio market, something that had never been done before, a sensor-less motional feedback headphone amplifier. You can also call it ClearSound DAC. Since the product is aiming for Hi-Fi headphone market, it was crammed into a seemingly tiny form factor measuring 1.0 x 2.6 x 0.35 inch ( 25 x 65 x 8 mm in the other part of the world. Don't be…

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Chicago LSM HTTP RESTful WebServices Interface 

Chicago Laser Scanning Microscope (CLSM) provides a RESTful web interface so that the clients and develop their own higher level application. Below are the description and explanation of basic API for general operation. (If you have the executable running on your computer, you can click the link to directly access some of the API call via browser.) { "HostExecutable": { "FileVersion": "25.11.15.2155", "ProductName": "CLSM with RESTful Interface", "InternalName": "CLSM", "CompanyName": "SpecialtyCircuits LLC", "LegalCopyright": "(C) 2014-2025 SpecialtyCircuits LLC", "FileDescription": "CLSM - AppWebServer" }, "Controller": { "SN": "SN:210018BB6E2A", "Model": "Analog Discovery Pro 3450", "DriverVersion": "3.24.64" } } http://localhost:38080/scclsm/get-image-param (GET) get-image-param returns the…

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early release screnshot

Chicago LSM - Product Update

For products supports visit: Chicago Laser Scanning Microscope Controller, aka CLSM, was a software I created for a confocal microscope under $2000. I started it in an apartment in Bridgeport, Chicago with a friend, while we were finishing up our PhD research. A prototype system was built, image acquired, confocal effect shown. So, technically, it all worked. But that was about it. Other priorities in life got us and the project had been left on the shelf for ten years. Recently, an opportunity came, and here we are. Add experiences after ten more years on scanning electron microscope, mass spectrometer,…

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Piggyback Base Carrier

At SpecialtyCircuits, we produce many types of amplifier for oscilloscope or signal sensing applications. A common need of a universal bipolar power source and digital communication interface starts to rise. To minimize repeated development effort on creating functionally similar power and digital circuitry, we created Piggyback Carrier board together with matching enclosure and standardized front panel designs. Application: Highlight: A summary of key feature includes: Isolated DC/DC converters are included to generate necessary voltages for analog daughterboard. The DC ground path of USB power input is completely removed by the isolated DC/DC converter. An optional built-in 300mAh 14250 lithium ion…

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Discrete Bipolar Linear Voltage Regulator

We are glad to announce that SpecialtyCircuits LLC will be offering a discrete linear voltage regulator build on Aluminum substrate. Highlights: Application: Custom Options: Unit price is $99+tax/tariff. Contact us at for volume pricing, OEM, and technology transfer.

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Ion Funnel Offerings

Ion funnel is a device that utilizing ion molecule collision and RF pseudopotential field is collect ions from a high pressure region and transition into a lower pressure region. The device was invented decades ago by PNNL. The patent had since expired. There are a few companies sells custom ion funnels, might as well add another one from SpecialtyCircuits LLC. The most commonly documented ion funnels are build with multiple PCBs, well the most produced ones are not. The big names in mass spectrometer business does not regularly advertise their internal components engineering publicly. The standard-off-the-shelf offering from SpecialtyCircuits is…

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Precision DAQ Solution based on NI-sbRIO

SpecialtyCircuits LLC started as specialized solution provider in instrumentation control business. In a very early product, we encompassed the need of mass spectrometer control, specifically ion trap mass analyzer. In the very beginning of SpecialtyCircuits's endeavor of creating a niche data acquisition product, a precision timed triple channel analog in and out board was conceived. The primary target use case was to drive ion trap mass analyzer at high accuracy and stability. At the end the application is not limited to ion trap control. Highlights: Customization Capacity: Please contact for pricing, customization and OEM.

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Miniature Ion Guide/Funnel Driver Electronics

After the founder of SpecialtyCircuits LLC quit his job in a mass spectrometer company and went to do software engineering, he did not think he was done with mass spectrometer yet. So he spent some time in the evenings before his daughter's birth designing a new set of RF electronics for ion guides with simplification and cost-reduction as the primary goal. Once his daughter was born, this new life priority took charge and the progress of ion guide driver stalled. Now that the daughter has grown big enough, he is now able to restart this project. Highlights: Please contract …

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Programmable Picosecond Impulse Generator

Often time, people want to qualify their oscilloscope speed, the most common method is to send a fast pulse into the input and measure the rise time. Assuming Gaussian response characteristics, the bandwidth is 0.35/rise time. There are many commercial solution to this problem. People can either get a full fledged calibrator for $50K+ or get something like this LBE-1320A Fast risetime pulse generator. They generate pulse or square wave with specification like 30ps rise time at 10MHz repetition rate. But, instrumentation is never easy, what if someone want a pulse that has 30ps rise and fall time as a…

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Yet Another Hobbyist Electrical Calibrator

The founder of this LLC started his endeavor in electronics in mass spectrometer business, which is sort of a metrology thing in some aspect. Later this expensive hobby expanded into electronics metrology. The hobby got more and more expensive over time and the owner of this LLC ended up purchasing a 8.5 digital multimeter and such. In the hobbyist metrology world, there are two most common topics. One is lowest jitter clock, the other is highest stability voltage reference. Some people also expanded their toys into resistance standard and such. As many years of on and off research and trials,…

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