240v AC to 90(110)v DC Converter (1 Viewer)

LazyRover

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Googling around, I can find plenty 240v AC to 12v DC converters and 240v AC to 110v AC

but not 240v AC to 90 or 110v DC converter.

Does anyone know where I might find one?.

Thanks.
 

dazzer

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Blimey!!!

What on earth do you need 100v DC for??? :Eeek:

Ive never heard of such a thing or indeed anything needing that amount of power in DC form:Eeek:
 
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LazyRover

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A friend has some very old value radios which he is trying to get working. Apparently they run at 90v DC.:Smile:

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hilldweller

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A friend has some very old value radios which he is trying to get working. Apparently they run at 90v DC.:Smile:

WOW - blast from the past. When I was a kid I had a portable radio with 90V and 1.5V batteries. 90V for the electronics and 1.5V for the heaters.

Cost a fortune to run it.

Google: tube radio battery substitute
and he'll find the answer.

One here: http://www.antiqueradio.org/bsupply.htm
 

pappajohn

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WOW - blast from the past. When I was a kid I had a portable radio with 90V and 1.5V batteries. 90V for the electronics and 1.5V for the heaters.

Cost a fortune to run it.

Google: tube radio battery substitute
and he'll find the answer.

One here: http://www.antiqueradio.org/bsupply.htm

substituting the 110v ac components for those suitable for 230v ac of course (presumably ?)

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Wildman

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why not use a 240/110V Ac transformer then add a bridge rectifier and some smoothing caps you should get someplace close. might need to add another transformer to bring it down a bit or wind one to suit.
 
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LazyRover

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Thanks everyone.

I'll pass on the advice.:thumb:

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hilldweller

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substituting the 110v ac components for those suitable for 230v ac of course (presumably ?)

A tiny 230V transformer would be needed. Maybe as low as 60V secondary.

It does need a bit of experimentation because a battery set would not have provision for any hum on the DC supply. Sure ain't rocket science.
 

pappajohn

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A tiny 230V transformer would be needed. Maybe as low as 60V secondary.

It does need a bit of experimentation because a battery set would not have provision for any hum on the DC supply. Sure ain't rocket science.

Tis to me Brian......i buy electronics ready made in a suitable box.
 

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