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4hv.org :: Forums :: General Science and Electronics
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Will a mot work for a audio output transformer?

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Luceš
Thu Jun 07 2012, 01:35AM Print
Luceš Registered Member #4108 Joined: Sun Sept 25 2011, 11:43PM
Location:
Posts: 149
Hi! I am building a low budget hillbilly amp... And output transformers are the weightless plan for my wallet. Anyone know if a mot will work in a pinch? Ps I'm using an 833a
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Steve Conner
Thu Jun 07 2012, 06:59AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
I've seen a single ended amp made with an 833 and a MOT before. smile I think it was done by "Experimentonomen", he is on the forum and sometimes in the 4hv chat.
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Dr. Dark Current
Thu Jun 07 2012, 09:24AM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
If you put an air gap in it, it could work somewhat... No bass, no treble, but with an 833 it will scream enough tongue

Ps. You might need to rewind the secondary (the original primary) with fewer turns. Remove the shunts to decrease leakage.

Ps2: If it is a 120V MOT, the original primary may have around the right number of turns.
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Luceš
Thu Jun 07 2012, 12:31PM
Luceš Registered Member #4108 Joined: Sun Sept 25 2011, 11:43PM
Location:
Posts: 149
I think will have to modify the secondary so there are about 40 turns.

Thanks guys
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