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Tag Archives: electronics
Replacement a ballast
I soldered four wires, some heat shrink tubes, and used three zip ties to mount the ballast and organize the wires.
Kit for Transistor Circuits e-book by Colin Mitchell
Click to access 1-100TransistorCircuits.pdf Click to access 101-200TransistorCircuits.pdf
Posted in Science and technologies
Tagged Colin Mitchell, electronics, learning kit, Talking Electronics, transistors
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I bought a Tektronix TDS 310 oscilloscope.
The welcome screen Tektronix “Committed to Excellence” TDS 310 Digitizing Oscilloscope (FV:v2.02) (c) Copyright, Tektronix, Inc., 1993. All rights reserved. Power-On self check PASSED Push CLEAR MENU to proceed. Starting self test All tests passed. I’ll have to buy pair … Continue reading
Journal of 2014/10/02
Once I start laying earthbags, I plan to work 16 to 17 hours per day due to the nature of the job. It’s better be done without any rain interruption. Every day passes by, the day light gets shorter. The … Continue reading
Posted in DIY
Tagged DIY, electronics, floor construction, house project, mouse, pine lumber, wood working, work light
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Journal of 2014/09/22
I made a full pounder that is explained on Earthbag Building, Kaki Hunter and Donal Kiffmeyer. The full pounder weighs about 5.5 kg (12 pounds), shape is like plastic planter pot, 15 cm diameter, 17.5 cm height. I reduced diameter … Continue reading
Posted in DIY
Tagged concrete, DIY, Earthbag, electronics, house project, pounder, work light
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Construct an Isolation Transformer
I like the simple and clear explanation how to build an isolation transformer using two identical power transformer.
Posted in Science and technologies
Tagged electronics, isolation transformer, power transformer
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What is battery drain current?
I think I had wrong type of batter for testing the 350mA Laser module the other day. Battery rating mAH doesn’t cover the drain current. http://www.batterysavers.com/Compare-Batteries.html Battery Type Typical Flashlight mAh Drain Capacity (mAh) Designed For Typical Drain (mA) D … Continue reading
Posted in Science and technologies
Tagged AA, AAA, battery, drain current, electronics, mAH
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Introduction to Generators and Motors
Navy Electricity andElectronics Training Series Module 5—Introduction to Generators and Motors NAVEDTRA 14177 Download link
Posted in Science and technologies
Tagged book, electricity, electronics, generator, motor
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220V to 110V step down transformer
Update: I need to use two identical isolation transformers or buy a product. AC power: 2kVA Frequency: 60Hz Input voltage: 220V Output voltage: 110V Secondary current: 18.2A Insulation type: E 110V outlet has hot for short slot, ground for tall … Continue reading
Posted in Science and technologies
Tagged 110V, 220V, AC power, electronics, step down, transformer
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