File:Making new indicators.jpg
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Summary[edit]
| Description |
English: So the bulbs did not work well. I decided to try white LEDs. An anachronism, but they can be fitted with no modifications to the machine so I can go back to filament lamps if I ever get them.
Top row : I started with a white LED, a 1N4148 diode (to be connected in antiparallel to prevent excessive reverse voltage when the device is run from AC) and a 1k resistor. Middle row : These are connected together. They will then be covered with heatshrink sleeving and fitted to a contact base from one of the old bulbs. Bottom row : A complete indicator. I made 3 in total, of course. |
| Date | |
| Source | https://www.flickr.com/photos/43851301@N02/9961835575/ |
| Author | tony_duell |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by tony_duell at https://flickr.com/photos/43851301@N02/9961835575 (archive). It was reviewed on 27 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:02, 27 December 2019 | | 3,648 × 2,736 (3.75 MB) | Ser Amantio di Nicolao (talk | contribs) | User created page with UploadWizard |
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