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Sets, Parts and Service Information Wanted (private buyers only, no swaps) If you need help obtaining components, sets or equipment, post a message here. Private buyers only - no traders. No swaps.

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Old 13th Nov 2017, 7:26 am   #1
mickyfinn
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Default Wanted 6.3v transformer

Can be 240 or 110v input but 6.3v output at least 5A. Even better would have 110v out too. Please PM if you have anything suitable.
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Old 14th Nov 2017, 2:12 pm   #2
Diabolical Artificer
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Default Re: Wanted 6.3v transformer

Sorry, don't have anything like that Mick. If it were me I'd buy a suitable toroid off ebay, take off the secondary and wind your own. It's easy to do, power up the tfmr with 10 turns on, with, for a heater winding say, a big 50ohm or two 100 ohm in parallel resistors as load and take a voltage reading. Measure length of said 10 turns, do the maths, measure out your wire, with about 1ft extra for every 10ft and an extra 5ft for luck . Do your heater wndg first, and power up and take a reading before trimming and dressing your lead out wires. secure said leadout wires with masking tape or whatever.

Use this table (others available) to get your wire gauge - https://www.engineeringtoolbox.com/w...ges-d_419.html

You transfer your wire to a bobbin, say a scrap of wood a foot long a tad under the core dia wide. Will take an afternoon or so. Finish with Kafton tape. Wire available here - http://www.brocott.co.uk . No relationship with the company just happy customer.

Andy.
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Old 14th Nov 2017, 3:16 pm   #3
merlinmaxwell
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Default Re: Wanted 6.3v transformer

Just get a 6V torroid, it will be near enough.
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Old 14th Nov 2017, 3:33 pm   #4
mickyfinn
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Default Re: Wanted 6.3v transformer

Thanks very much for replies,its for a Seeburg jukebox amp which normally gets its power from the receiver which contains the 110 and 6.3 suppies.I want to use the amp in a different application without the receiver,the 110v is no problem,the chap that services my amps says the 6.3v needs to be around 50va.
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Old 14th Nov 2017, 4:07 pm   #5
merlinmaxwell
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Default Re: Wanted 6.3v transformer

A 100VA toroid will give a wee bit more than 6V loaded to 50VA and run cool as well. Also a dual 55V one would give the 110V series connected. Quite cheap as they are commodity devices now.
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Old 14th Nov 2017, 4:42 pm   #6
mickyfinn
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Default Re: Wanted 6.3v transformer

Merlyn Maxwell could you possibly take the trouble to give me a link to something suitable?
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Old 14th Nov 2017, 5:30 pm   #7
astral highway
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Default Re: Wanted 6.3v transformer

Mick, forum rules allow EBay to be mentioned, but not links to items on it. But have a look there, plenty of choice.

VA is (without any exception that I've seen) always listed.

The winding job is really easy
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Old 14th Nov 2017, 6:20 pm   #8
Herald1360
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Default Re: Wanted 6.3v transformer

I thought Ebay straight links to a suitable item were OK. (As long as you're not the seller!)

Just don't start any discussion about it.
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Old 14th Nov 2017, 6:22 pm   #9
mickyfinn
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Default Re: Wanted 6.3v transformer

Whoops forgot sorry
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Old 15th Nov 2017, 4:06 pm   #10
daviddeakin
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Default Re: Wanted 6.3v transformer

If you buy a 230V:6V transformer and run it at 240V, which is what we actually get out of the wall in the UK, you will get 6.3V. Neat, huh!
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