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STICKY Megathread: Random observations about electronic devices

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Resistor finder

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Sometimes it feels like you're doing surgery on the stuff. [960x1280 - 224KB]

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audio filter question

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465

ALBUM

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Please Help Me Find This Battery For Sale: Rechargeable 3.7 V 260mah 08500 LiPo

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Use Your Resin 3D Printer to Fabricate PCBs - Hackster.io

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155

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Ferroelectric Transistors for Homomorphic Encryption - IEEE Spectrum

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You've got to see this build of a real working Fallout Radiation King radio. Amazing.

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IMG

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Most friends bring beer or wine, friends who know me bring whisky and then there's this friend...

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Before and after [3024x8064 - 1MB]

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Working on an old electronics device...how did it work at all?

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A friend sent me his shop's Christmas tree. [1536x2048 - 1MB]

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486

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Help me with this (6W Solar Panel, 5V/1A Mini USB Solar Panel)

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DIY Precision milliohm meter by popular request with circuit diagram. [Michael Dranfield] [12:33]

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Neon Lamp information, types, and circuits. [PDF]

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IMG

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I can never get the wire to lay as neat as the original. [960x1280 - 165KB]

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Working on a vacuum tube device and ran across an unusual issue.

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A video about magnetrons you literally can not understand. Maybe Commiela could explain it so we can understand it.

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NTE Electronics, the last of the cross-referenced replacement part houses, has gone out of business.

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Using the 555 for everything. What can't it do?

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Got these great capacitors for sale cheap - Great value! [650x500 - 60KB]

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I'm done with AliExpress. Their logistics suck!

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This guy was so excited building a solid state triple diode triode EABC80/6AK8 tube. You can tell.

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" Microworld " 1976 AT&T / Bell System Microprocessor & Computers Film w/ William Shatner Xd35644 Video(14:48)

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TIL, MFJ closing down manufacturing facilities effective May 17th 2024

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RFETS may be able to replace PNP and NPN devices with a single device. Electrostatic doping makes it feasible to reuse circuits.

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