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11th Aug 2008, 7:08 pm | #1 |
Retired Dormant Member
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0.01uf Capacitor
Hi guys,
I've just been given an old Trio (Kenwood) integrated amp. After getting it working briefly it's now dead and I seem to have blown a capacitor across the mains. The capacitor is marked at 0.01uF at 630wV. Does anyone know where I can find such a capacitor? Thanks in advance. |
11th Aug 2008, 7:17 pm | #2 |
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Re: 0.01uf Capacitor
You will need an X2 rated capacitor. Maplins sell them - the value isn't critical and anything between 0.0047uf and 0.047uf will be OK. You will probably find some suitable caps if you dismantle an old computer PSU.
Paul |
11th Aug 2008, 8:37 pm | #3 |
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Re: 0.01uf Capacitor
Great thanks.
Unfortunatly I just moved on a few old computers so I'll be off to Maplin. Aside from age, any general speculations on what could cause problems with a capacitor across the mains and the fuse? When I was given it there was no fuse and I'm now wondering if there is a problem in this area. Thanks |
11th Aug 2008, 9:25 pm | #4 |
Nonode
Join Date: May 2005
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Re: 0.01uf Capacitor
Hello,
Maplins do a 0.01uf Class x2 safety capacitor for 31p, part number N65CN. Howard |
11th Aug 2008, 9:41 pm | #5 |
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Re: 0.01uf Capacitor
I use an X2 rated encapsulated device which is a 0.01 cap in series with a 120Ohm resistor XEB1201 from RS or Farnell. Another useful device to put directly after the mains switch is a two lead semiconductor which remains high until a spike appears, it then goes low and shorts out the spike, don't have a number for them but they are in the catalogue. I have had these safely fitted without any trouble for years to various bits of kit.
Geof |
11th Aug 2008, 10:10 pm | #6 | |
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Re: 0.01uf Capacitor
Quote:
This isn't to say that you don't have an additional fault of course - there's no knowing that from the info you've given. Paul |
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11th Aug 2008, 10:36 pm | #7 |
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Re: 0.01uf Capacitor
Ok that's fair enough.
Thanks to all for all of the help. |
12th Aug 2008, 9:53 am | #8 |
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Re: 0.01uf Capacitor
The amp should still work with this capacitor removed. It might be worth removing it and replacing any blown fuses. You can then see if the amp works before spending money on a new capacitor.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
12th Aug 2008, 10:52 am | #9 |
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Re: 0.01uf Capacitor
Yeah, that make sense I'll pull it out and give that a go.
Thanks |
16th Aug 2008, 9:20 pm | #10 | |
Dekatron
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Re: 0.01uf Capacitor
Quote:
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22nd Aug 2008, 1:08 am | #12 |
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Re: 0.01uf Capacitor
These varistors come in a variety of voltage and other specifications. I don`t know about Maplin but Farnell sell a range. I have one across my mains input to the house to help keep spikes out of equipment. We are fed by overhead lines here.
Pat |