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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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14th Jun 2021, 1:57 am | #1 |
Triode
Join Date: Mar 2014
Location: Buenos Aires, Argentina.
Posts: 22
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Telefunken end of 50's TV capacitors question
Hi all,
I got a Telefunken vintage TV and I came across with more than 50 capacitors in it (not counting disk caps). Question is, as I am not familiar with European caps, do all of them have to go? There are several different types: Disc and tubular ones around IF section: they stay Electrolitics: all need to be replaced Gray japanese ones: all need to be replaced Brown candy-like brown shiny ones: I don't know Tubular brown ones: I don't know Could you please advice about the last two ones? In the pictures you can see them Thanks a lot. |
14th Jun 2021, 7:16 am | #2 |
Octode
Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 1,704
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Re: Telefunken end of 50's TV capacitors question
A lot of the light brown 'Ero' caps appear to be loosing their end seals, so will need replacing. The dark 'Wima' ones if cracked will need to be replaced. The light brown polyester caps are probably OK even some of the electrolytics may have survived. Best is to test anything that you are unhappy with and go from there.
The other option is change the lot but that will incurr a fair bit of expense. I would also be concerned about the carbonised burn up in picture 2. Just my thoughts. Dave
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14th Jun 2021, 10:28 am | #3 |
Tetrode
Join Date: Sep 2019
Location: Aalborg, Denmark
Posts: 97
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Re: Telefunken end of 50's TV capacitors question
Even though the Wima Tropydur capacitors may not be cracked it is my experience that they're still bad, maybe because they're still able to absorb moisture over time. Definitely not a good capacitor.
Once reformed slowly by an increasing AC voltage, the large filter capacitors may be just fine, so I'd be hesitant to just replace them. Unless they have physical signs of problems. Looks like CRT is AW43-88? Looks like a nice set, from the little I can see |