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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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15th Sep 2023, 9:00 am
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#1 |
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Tetrode
Join Date: Mar 2022
Location: London, UK.
Posts: 59
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Component Identification
HI All,
Just wondering what you guys make of this. Hard to see in the pic but it reads Uf in the oval. So I thought 4700 uf but seems an odd value. There is also another cap exactly the same with 2220 as the number. Thanks all |
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15th Sep 2023, 9:19 am
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#2 |
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Dekatron
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,366
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Re: Component Identification
It physically is too small to be 4,700uF, also for that value it would be an electrolytic capacitor which it does not look like.
If it is a capacitor then maybe 4,700pF, the uF in the oval marking maybe a brand marking identification. What piece of equipment is it from ? David |
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15th Sep 2023, 9:19 am
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#3 |
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Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,019
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Re: Component Identification
Hi Ed, disc ceramic may only be 50V as writing not clear, bur 4700pF and 2200pF value
Ed |
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15th Sep 2023, 11:44 am
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#4 |
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Dekatron
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,939
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Re: Component Identification
And these are very reliable too...
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15th Sep 2023, 3:36 pm
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#5 |
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Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,367
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Re: Component Identification
Look like two 4n7 or 4700p ceramic caps. Comparing them with the size of the resistors next to them I'd say they were low voltage. The circuit they are in should tell you more as will a quick voltage test.
Andy.
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Curiosity hasn't killed this cat...so far. |
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16th Sep 2023, 12:07 am
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#6 |
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Dekatron
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,062
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Re: Component Identification
The resistors look eastern european.
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16th Sep 2023, 6:46 pm
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#7 |
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Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,443
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Re: Component Identification
Yep, 4n7 (4700pF) ceramic. Low voltage type and probably faultless.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
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17th Sep 2023, 10:41 am
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#8 |
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Tetrode
Join Date: Mar 2022
Location: London, UK.
Posts: 59
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Re: Component Identification
Brilliant! Thanks for clearing that up guys.
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