3rd Jun 2021, 2:57 pm | #1 |
Heptode
Join Date: Jun 2018
Location: Carmarthenshire, Wales, UK.
Posts: 569
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Ekco U353
Can any one please tell me which is the coupling capacitor on this model. Also what I need to replace it in power and value type etc. If you can please I bought this works OK but I like to replace coupling capacitor I was told it is a good thing to do on an old model
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3rd Jun 2021, 3:05 pm | #2 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 6,875
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Re: Ekco U353
In the manufacturers info its C51
It's often called "that cap" A 400V 0.01uF I would use a modern Poly Cap Something like this would be OK in this position: https://www.ebay.co.uk/itm/301127883...r=600224687083 See snips Cheers Mike T
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Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk |
3rd Jun 2021, 3:09 pm | #3 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,966
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Re: Ekco U353
I vaguely remember that this radio uses a ceramic cap in that position - if so, it probably doesn't need changing. Check for +ve volts on pin 2 of the UL84.
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3rd Jun 2021, 3:42 pm | #4 |
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,433
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Re: Ekco U353
They did start to use ceramics but mainly in the RF/IF stages, I think will be a TCC MetalMite type, I.e. paper.
If it is ceramic then yes just test it, if other types then replace, the one in post #2 is fine but it may be an easier fit to use an axial type rather than radial.
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3rd Jun 2021, 4:04 pm | #5 |
Dekatron
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
Posts: 3,621
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Re: Ekco U353
This might be a better choice, with axial leads:
https://www.cricklewoodelectronics.com/CFH10NH.html I try to avoid radial leads, as they don’t look as nice in vintage hand wired chassis such as this radio. Howver, the radial leaded type will do, as long as it has a dc working voltage rating of at least 400 Volts. |