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humming 2x25volt 300 va trafo
humming 2x25volt 300 va trafo
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Old 10th May 2005, 09:25 PM   #1
marn_x is offline marn_x  Netherlands
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Location: near zwolle
Default humming 2x25volt 300 va trafo

hello,

i have an trafo for sale, it is 2x25volt and 300va.
problem is it makes an humming noise, so i cant use it in my amplifier. maybe someone can use it for testing or so.

i bought the trafo a few weeks ago second hand, but when i tested it, i found out this noise.

i ask 10 euro's for this trafo.

greetings marnix
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Old 10th May 2005, 09:45 PM   #2
joensd is offline joensd  Germany
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Hi Marnix,
is it a toroid and did you buy it new?
Which manufacturer or supplier?

thanks&greets
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Old 11th May 2005, 09:43 AM   #3
marn_x is offline marn_x  Netherlands
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Default trafo

hello,

yes it is a toroid, from the brand lp transformers.

i bought it second hand.

greetings
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Old 17th May 2005, 06:29 AM   #4
klm1 is offline klm1  United States
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still for sale??? i might be interested in it.
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Old 17th May 2005, 08:25 AM   #5
marn_x is offline marn_x  Netherlands
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Default trafo

yes it stil is..
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Old 17th May 2005, 04:16 PM   #6
kilowattski is offline kilowattski  United States
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Marnix,

Are you sure that the humming was the fault of the transformer or was there DC on the primary?
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Old 17th May 2005, 09:40 PM   #7
marn_x is offline marn_x  Netherlands
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Default trafo

hello,,

the trafo makes noise out of itself, not trough an amplifier or so.
so i guess it is mechanical.

greetings
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