Post A4Ch7cTFrfnexrabL6 by requiem@hackers.town
(DIR) More posts by requiem@hackers.town
(DIR) Post #A4Ch7cTFrfnexrabL6 by requiem@hackers.town
2021-02-12T16:49:03Z
0 likes, 1 repeats
I found this at the ReStore among an assortment of “antique” electronic components. Most were relays, knife switches etc. but this caught my eye because of the “ratchet” gear.Turns out it’s something like an electromechanical “flip-flop”. When the coil is energized, the lever turns the gear one notch, which closes one circuit and opens another. The ratchet keeps the circuit in this state even after the coil is de-energized. On the next pulse, the circuits are reversed, and so on.
(DIR) Post #A4Ch7cr0RMna9WhZMO by piggo@piggo.space
2021-02-12T16:51:26.030420Z
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@requiem it's a step relay. They're still made, but I'm not sure if they came up with a different mechanism. They certainly are a whole lot smaller
(DIR) Post #A4CiWoRkZmkNIgSjXE by requiem@hackers.town
2021-02-12T17:00:06Z
1 likes, 0 repeats
@piggo thank-you for naming it! I found a placard with ratings and a manufacturer name but no name or term for the device.I’d like to build something with it but it wants 120VAC and is ancient, so I might just replicate it and use this one for reference 😁
(DIR) Post #A4CiWonjG4KOOqkHnE by piggo@piggo.space
2021-02-12T17:07:10.782994Z
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@requiem They are mostly used for lighting circuits, to toggle the light by a momentary switch ... and any number of these you may want, without crazy cross switches. Here's an example of a contemporary one https://cdn.findernet.com/app/uploads/2020/09/27080902/S26EN-2.pdf
(DIR) Post #A4CuL2vu5bZ2ChiqMC by jond@mastodon.social
2021-02-12T18:52:26Z
1 likes, 0 repeats
@piggo @requiem The old open ones often allow you to monkey with the cams, too. You can reclock them, file them to adjust make-before-break time, etc.