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The set 4N35, 4N36, 4N37 are popular and versatile optocouplers for isolation of circuit blocks.
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The 1N4148 is a standard silicon switching signal diode. Nominal values are Switching Speed 4 ns. Reverse Voltage 100V, Forward Current 200mA, 25nA leakage current. Room Temperature Specs. Package DO-35, DO-204AH. 500mW Power Dissipation. IN914 equivalent..
Datasheets of 1N4148 High Speed Diode.
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Providing detailed electronic design information regarding Interface, Computer, Cable, Processor and Embedded Buses. - Leroy Davis Buses used on Personal Computers, Computers & Peripherals, Standards, Wireless, Logic Design.
interfacebus.com - Interface and Cable design
The site is geared toward Engineers who develop or design equipment. There are 3 main sections; OEM Equipment / Components listings, Computer buses, and engineering design data.
High-end computerized lab equipment, accessories and sensors. They also manufacture OEM transducers, signal conditioners, industrial standards interface boards and kits. (USA Firm). Erlich Industrial Development Corporation (EID) is an OEM manufacturing and R&D Company specializing in the development of high technology biological, medical and chemical research products.
Adjustable Output Positive Voltage Power-Supply Kit
Supplementary to EMI/RFI/EMC Immunity of an Equipment. Many Installations are subject to Highly Disruptive Electrical Environment not just EMI. Depending on the budget and the situation a solution has to be found. Sometimes a CVT or an Isolation Transformer can do a lot of good.
Converting all Energy inputs to battery energy and having a Isolated Synthetic Sine Supply may be an expensive but good solution. Either way the devices that face the harsh environment have to be over rated along with these protections. - delabs design Notes
In the case of the electrical industry, safety is critical and the codes and regulations that determine safe practices are both diverse and complicated. Employers, electricians, electrical system designers, inspectors, engineers, and architects must all comply with safety standards listed in the National Electrical Code, OSHA and NFPA 70E.
There are many different types of temperature measurement devices, each one tailored to meet a specific need. This fact sheet provides information on the types, use, and calibration of temperature measuring devices. It also provides guidelines for the selection and proper maintenance of common thermometers and temperature sensors.
Selection and Maintenance of Temperature Measurement Devices
CA3140 and CA3130 are originally RCA part numbers( i feel). They are amazing close to ideal opamps, the input offset has to be trimmed. I used to use it when high input impedance is required. 1.5T ohm 10pA is the specs. A Electrometer can be made with just one opamp.
CA3130 has the additional Merit of swinging to the rails, if you are on a +/- 12V supply, the output will be +/-12V. This is a feature required in control applications.nn
CA3140 -4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output
The LM78XX series of three-terminal positive regulators is available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down, and safe operating area protection. 78xx 79xx voltage regulators
7805 is popular for Embedded Systems and 7905 is sometimes used for the Dual Supply needs in such Microcontroller cards with Mixed Design sub-sections like A/D or Opamps.
