1/21/2011 9:16:43 PMBob Young(92723:0)
Hay all,
Anyone know of an establishment that a guy could acquire a usable power transformer for a Zenith 6S-229. Powered the unit up today and the transformer started to gergle and melt. Seems the in-line fuze was removed and perpetuated this situation.
Any help would be greatly appreciated.
Thanks
Bob
1/21/2011 9:57:02 PMWarren(92724:92723)
Play things of the past has some Zenith transformers. Listed with the Zenith part number.
http://www.oldradioparts.com/2a23efl.txt
Did you try the radio without the rectifier tube in the socket ? The transformer may not be bad.
1/22/2011 10:34:47 PMTerry Decker(92748:92724)
:Play things of the past has some Zenith transformers. Listed with the Zenith part number.
:
:http://www.oldradioparts.com/2a23efl.txt
:
:Did you try the radio without the rectifier tube in the socket ? The transformer may not be bad.
:
Antique Electronic Supply-
(www,tubesandmore.com)
has a great selection of transformers too.
Terry
1/22/2011 11:19:09 PMBob Young(92749:92748)
::Play things of the past has some Zenith transformers. Listed with the Zenith part number.
::
::http://www.oldradioparts.com/2a23efl.txt
::
::Did you try the radio without the rectifier tube in the socket ? The transformer may not be bad.
::
:Antique Electronic Supply-
:(www,tubesandmore.com)
:has a great selection of transformers too.
:Terry
:
Terry,
Pulled the rectifier tube and the transformer still gergles and this time it smoked. Quite sure it's shorted out.
Thanks for the input.
Bob
1/23/2011 12:21:49 PMTerry Decker(92752:92749)
:::Play things of the past has some Zenith transformers. Listed with the Zenith part number.
:::
:::http://www.oldradioparts.com/2a23efl.txt
:::
:::Did you try the radio without the rectifier tube in the socket ? The transformer may not be bad.
:::
::Antique Electronic Supply-
::(www,tubesandmore.com)
::has a great selection of transformers too.
::Terry
::
:Terry,
: Pulled the rectifier tube and the transformer still gergles and this time it smoked. Quite sure it's shorted out.
:Thanks for the input.
:Bob
:
:
Since replacing the transformer will be a drag, I'd suggest a couple of other tests first. Keep in mind that even with the rectifier tube removed, there's still a possible short in the heater line. One test would be to disconnect the secondary leads and use a "Dim Bulb Tester" This is a 25 watt bulb in series with one leg of the primary. If the lamp glows dimly, the transformer is good. If it IS dim, replace the secondary leads one set at a time. Another is to use a very sensitive meter, like an ACVTVM, to ohm out the leads. The HV winding should be 200 to 400 ohms. The heaters windings would, of course be very low, 1 to 5 ohms.
In any case, since you're going to have to do so any way, I'd try some tests with all of the secondary leads removed and carefully marked.
Keep us posted.
Terry
1/23/2011 7:22:35 PMPeter G Balazsy(92759:92752)
Don't fear too much. Most used transformers are only about $15-$20 or so.
When I first started restoring radios, the thought of replacing a power transformer was a big scary mystery... but in fact it was actually quite simple easy and quick.
Just mark or label your leads and you'll have little problems... and when done you'll be proud of yourself.
1/23/2011 8:56:50 PMBob Young(92764:92759)
:Don't fear too much. Most used transformers are only about $15-$20 or so.
:
:When I first started restoring radios, the thought of replacing a power transformer was a big scary mystery... but in fact it was actually quite simple easy and quick.
:
:Just mark or label your leads and you'll have little problems... and when done you'll be proud of yourself.
:
:To All,
Thanks for everything. Lots of excellent advise. Now the hard part, finding a replacement transformer. Odds are this one is toast. It bubbled and smoked to much to hope it's still functional. However, I will make sure something else didn't short it out. Thanks again and I'll let you know how things work out.
Bob
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