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Old 04-05-2003, 08:49 PM   #1
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schematic needed!

does any one have an internal schematic for a univolt 5, model tu345A? triad utrad.

it is in a '74 excella 31 foot.

have 120 volts in, transformer is humming, no output. external fuses are good.

thanks in advance!

john
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Old 04-06-2003, 08:39 PM   #2
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Question

andy or frank

any of you have one?

i would hate to toss something that is working (sort of) if it is something minor.

john
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Old 04-06-2003, 09:14 PM   #3
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How about a whole entire Univolt, a little buzzy but working. I'll trade it for a pound of them there white cheese curds and a six pack of Old Style!!

Chas
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Old 04-06-2003, 09:22 PM   #4
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yer on!

chas

i'll consult my buddy and see if he thinks it a fair deal!

mr. buzzy vs. a pound of white gold and the beer from god's country.....

hmmm, i'll get back to ya!

john
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Old 04-07-2003, 10:29 AM   #5
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74 owners

john hd Never toss away a Uni-volt.
Is your buddy with the 74 Excella not a member here? He ougta be.
we need all the 74 owners we can muster. Seems that 74 was the oddest of years for Airstreams, much confusion as to what's what in that particular model year?
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Old 04-07-2003, 10:50 AM   #6
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John HD

We do not have a schematic and neither does Airstream.

A humming transformer still can be bad, on the secondary side.
Diodes are usually the culprit.

Andy
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Old 04-07-2003, 11:51 AM   #7
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project time!

andy and pap

when i get into this one, i'll draw a schematic up and post it for all to see!

hopefully there are manufacture numbers on the components, i'll post those also.

john
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Old 04-07-2003, 12:09 PM   #8
 
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OK, count us in too.

Out 74 was humming badly at the head of the bed (had to turn in off at night). The phenolic board carrying the fuses is falling apart.
Besides that, I think it's working.
We never toss out anything, could be useful someday ????

Maybe we can all ship them somewhere, if that someone pays for shipping.
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