EEssential
Electrical Engineering Essentials
Monday, April 22, 2024
EBL Gold Pro AA NiMH 2800mAh rechargeable
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EBL Gold Pro AA NiMH 2800mAh rechargeable low self discharge battery (90% after 3 years) , weighs 28.90g, costs about $1.87 per cell, or 150...
Saturday, January 27, 2024
Fail Safe
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Recently a 15-year old gas water heater stopped working; the pilot could be lit and would not stay on. It can found on the internet a diagr...
Monday, January 22, 2024
Wireless Remote Control Switch
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Wireless remote control switch modules can be purchased for a few US dollars (around $7 for one pair). They come with coil antennas. They ...
Wednesday, January 10, 2024
Carbon Composition Resistors
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I got a box of carbon composition resistors which are perhaps 40 or 50 years old. They are things of past, having been replaced by carbon f...
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