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Posted by Steve B on March 15, 2007, 2:40 pm
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I got a Malibu 600 watt transformer. Model ML600TW. When I rotate the
on/off knob, it makes the sound of smacking the outer housing with a stick.
A loud audible clank. Then it hums.
When I apply the tester to the bottom connectors, I can't get it to read
anything. Double checked tester with various voltage alkaline batteries on
DC, and they tested fine, so tester is good.
Is this transformer fried? Is the humming normal? Is that clanking noise
normal?
Steve
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Posted by Steve B on March 15, 2007, 3:43 pm
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>I got a Malibu 600 watt transformer. Model ML600TW. When I rotate the
>on/off knob, it makes the sound of smacking the outer housing with a stick.
>A loud audible clank. Then it hums.
>
> When I apply the tester to the bottom connectors, I can't get it to read
> anything. Double checked tester with various voltage alkaline batteries
> on DC, and they tested fine, so tester is good.
>
> Is this transformer fried? Is the humming normal? Is that clanking noise
> normal?
>
> Steve
>
I tried it with a light, and the light works. But I can't get a read on it
with a tester, though I can get a read on batteries with the tester when set
to 20 volt range on the tester.
Guess the clanging and humming is normal.
Steve
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Posted by Rafael Ramos on March 15, 2007, 6:34 pm
Please log in for more thread options Steve:
I have a feeling your meter (tester) is not working on AC. The actual
movement of a meter works on DC only. So if you are measuring AC then it
has to rectify the AC before it goes to the meter movement. I suggest you
measure the AC outlet in your place, assuming the meter is capable to
measure your house voltage to see if it is working properly.
The transformer may have some sections loose but otherwise may be working ok
Best Regards,
Ray R
>
>>I got a Malibu 600 watt transformer. Model ML600TW. When I rotate the
>>on/off knob, it makes the sound of smacking the outer housing with a
>>stick. A loud audible clank. Then it hums.
>>
>> When I apply the tester to the bottom connectors, I can't get it to read
>> anything. Double checked tester with various voltage alkaline batteries
>> on DC, and they tested fine, so tester is good.
>>
>> Is this transformer fried? Is the humming normal? Is that clanking
>> noise normal?
>>
>> Steve
>>
>
> I tried it with a light, and the light works. But I can't get a read on
> it with a tester, though I can get a read on batteries with the tester
> when set to 20 volt range on the tester.
>
> Guess the clanging and humming is normal.
>
>
> Steve
>
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Posted by Leo Lichtman on March 15, 2007, 8:17 pm
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"Rafael Ramos" wrote: in message
> Steve:
>
> I have a feeling your meter (tester) is not working on AC. (clip)
^^^^^^^^^^^^^^^^
Rafael, this was cross-posted to the metals newsgroup, and the threads there
include information that isn't shown here. Steve mentioned that the
"transformer" is labeled "12 volt DC Output," so your idea, while logical,
has to be ruled out. However, it is baffling to have an ekectrical output
that will light a bulb but not move a meter, UNLESS (this just occurred to
me) the output which is SUPPOSED to be DC is actually AC. Steve, check the
output with the AC setting. You could have a shorted rectifier bridge or
something.
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Posted by Steve B on March 15, 2007, 8:39 pm
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>
> "Rafael Ramos" wrote: in message
>> Steve:
>>
>> I have a feeling your meter (tester) is not working on AC. (clip)
> ^^^^^^^^^^^^^^^^
> Rafael, this was cross-posted to the metals newsgroup, and the threads
> there include information that isn't shown here. Steve mentioned that the
> "transformer" is labeled "12 volt DC Output," so your idea, while logical,
> has to be ruled out. However, it is baffling to have an ekectrical output
> that will light a bulb but not move a meter, UNLESS (this just occurred to
> me) the output which is SUPPOSED to be DC is actually AC. Steve, check
> the output with the AC setting. You could have a shorted rectifier
> bridge or something.
>
Actually, I ass-u-med that it was 12v. DC output because of the tail light
style bulbs that come in the lights. On the label, it does not say 12V AC
on the out, but merely 12V output. I put the meter on there on AC and it
read 12.0.
Doh!
Everything is working, and I'll aim them tonight and bury the cables
tomorrow when I know they're right.
Steve
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>on/off knob, it makes the sound of smacking the outer housing with a stick.
>A loud audible clank. Then it hums.
>
> When I apply the tester to the bottom connectors, I can't get it to read
> anything. Double checked tester with various voltage alkaline batteries
> on DC, and they tested fine, so tester is good.
>
> Is this transformer fried? Is the humming normal? Is that clanking noise
> normal?
>
> Steve
>