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| Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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10th Aug 2020, 6:33 pm
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#1 |
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Diode
Join Date: Aug 2020
Location: Yorkshire Wolds, East Riding of Yorkshire, UK.
Posts: 7
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Cyrus PSX (for the Cyrus 2)
A recent underrated fuse (3A) which should have been 5A, has made me consider whether I should change the large electrolytic capacitors in this power supply.
Thoughts, if so what make and models, and where to obtain them ? |
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13th Aug 2020, 7:44 pm
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#2 |
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Diode
Join Date: Aug 2020
Location: Yorkshire Wolds, East Riding of Yorkshire, UK.
Posts: 7
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Re: Cyrus PSX (for the Cyrus 2)
any comments ?
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13th Aug 2020, 10:31 pm
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#3 |
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Heptode
Join Date: May 2017
Location: Konongo, Ghana
Posts: 513
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Re: Cyrus PSX (for the Cyrus 2)
Some background to your question can be found here: https://www.diyaudio.com/forums/soli...ains-plug.html
It looks like you are concerned about the state of the capacitors because the power supply was running with a 3A instead of 5A fuse in the mains plug. I don't see how this can harm the capacitors in any way.
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Robert |
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13th Aug 2020, 11:25 pm
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#4 |
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Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,869
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Re: Cyrus PSX (for the Cyrus 2)
You're deducing that the main reservoirs have gone high ESR because they couldn't muster enough surge current on turn-on to pop the under size fuse?
A fuse should blow at the rated current, taking 1000 hours to do so. Run them a bit lower and the time goes up somewhat slowly at first. THey are not precision knife-edge devices. Only in Hollywood thrillers. David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
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