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File:Making new indicators.jpg

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Summary

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.

27 December 2019

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25 September 2013

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Date/TimeThumbnailDimensionsUserComment
current04:02, 27 December 2019Thumbnail for version as of 04:02, 27 December 20193,648 × 2,736 (3.75 MB)Ser Amantio di NicolaoUser created page with UploadWizard
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