Electromagnets (Split From Stuart Dynamo)

[Michael GilliganParticipant @michaelgilligan61133]

Thanks, Dave

… Take good care of yourself.

MichaelG.

[Michael Gilligan]

On Michael Gilligan Said:

News:

That nice Mr Ali has a lot of sellers offering Tau 5030 Solenoids, at prices bearing little resemblance to Amazon’s

But, as we don’t do links to the aforementioned … here’s Amazon:

https://www.amazon.co.uk/Electromagnet-TAU-0530-TAU-0530B-Solenoid-Keepping/dp/B0CF86CFM7

MichaelG.

Still hoping to keep this topic on the first page of the list 🙂

I am pleased to report safe delivery of Qty.6 of these solenoids … for a total expenditure of £10.39

It pays to ‘shop around’

MichaelG.

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Edit: __ I bought the 12v ones [blue coil] … They are nicely made and [with no additional load] operate smoothly on 5v

[john fletcher 1Participant @johnfletcher1]

As source of lamination how about using a Micro wave cooker transformer. As regarding cutting/ milling mains transformer lamination, some years ago I made myself a ‘Growler’ using a large transformer and milled a large VEE in which to place the armature, no problem.

[Robert Atkinson 2Participant @robertatkinson2]

Microwave oven transformers are not the best choice as a a source of lamination material. This is because the normally have a weld run across the windings. They also tend to use cheap materials. If you have a friendy scrap yard you could try them for an industrial transformer.

Robert.

[rjenkinsgbParticipant @rjenkinsgb]

A bit late, but just in case its useful to anyone.

Early telephones used a bundle of iron wires for the transformer core. Florists wire (soft iron) in a bundle should work well as solenoid or transformer cores and be somewhat vintage-authentic.

Doing a quick search, the plain iron type appears to be sols as “Stub wire” or Stubbing wire, in various gauges.

Search “florists black iron wire” and look for the stuff in bundles; I’ve just found it down to 24 gauge, though 19 gauge seems commoner.

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