Computing
Extending Ethernet Long Distances using Fiber Optic Media Converters
Research Links MC111CS – The data sheets are available under the download tab. Purchased. MC112CS – Purchased Ebay: 120 Ft Test cable Purchased: with correct connectors – in reality I need 250 Meters but this is cheaper to make sure all else is working before I buy the much more expensive fiber Read more…
Fiber Optics
Fiber Optic Power Budget Estimation
Research Links Calculating Fiber Loss and Distance Estimates Fiber Type Wavelength Fiber Attenuation /km (1) Fiber Attenuation per km (2) Connector Loss Splice Loss Multimode 50/125um 850nm 3.5 dB 2.5 dB 0.75 dB 0.1 dB 1300nm 1.5 dB 0.8 dB 0.75 dB 0.1 dB Multimode 62.5/125um 850nm 3.5 dB Read more…
Temperature-Controllers
BTU 3615 Temperature Controller used on Belt Furnaces
I had a talk with Bob Loeb of RGL Enterprises on the phone today. He works with ebay:BTU 3615 temperature controllers. Appears that the only software that works with them is DOS based and fairly antiquated. Loeb mentioned that the BTU 3615. Research Links BTU training document that contains information Read more…
Electronics
Repair of Sony HDR-HC1 Video Camera Touch Screen Flex Cable
Links Ebay: flex cable replacement part shop that specializes in this repair
Electronics
Microchip Fluid Level Sensing using TDR
Included are a presentation, Design, and BOM files in a ZIP file. The schematic capture and board layout are in DIPTRACE. The simulation files are done using LTspice from Linear Technology. This is a free program from LT. You will need to replace the.bjt file from LT with the file Read more…
Eagle PCB
Eagle PCB ULP Tutorial: User Language Program that lists the library .lbr files in project directory
I want to be able to write a script to mass change all the libraries that a project depends on in order to make better B.O.M. Bill Of Materials. The following script lists the libraries in the project directory. It writes the names of the libraries with full path to Read more…
Electronics
My First IC Design: LM317
The challenge: Reverse engineer the LM317 regulator using SPICE and the LM317 datasheet. http://www.electro-tech-online.com/general-electronics-chat/18270-lm317-spice-model.html – transistor level model of LM317 http://forum.allaboutcircuits.com/showthread.php?t=12152&page=6 QUCS has an example analysis of the LM317.