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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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Old 16th Sep 2020, 11:18 am   #1
ChristianFletcher
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Default Type Of Hunts Capacitor

Hello All

I’m working on some vintage test gear. I have some Hunts capacitor that are encased in white plastic. From the values 100uf at 12 volt I am guessing electrolytic. But I’m wondering if the plastic can has any meaning are they non polarised electrolytics. I have a few that have doubled in value so best have them out I think. It’s a Dymar two tone generator and haven’t been able to find any information on it.

Thanks regards Chris
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Old 16th Sep 2020, 1:58 pm   #2
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Default Re: Type Of Hunts Capacitor

Hunts electrolytics were no better or worse than others, but high readings do indicate leakage, not surprising given their age. They are polarised, once out it should be clear.
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Old 16th Sep 2020, 4:11 pm   #3
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Default Re: Type Of Hunts Capacitor

There are some nice Mullard caps in there. Never had one fail yet.
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Old 16th Sep 2020, 4:28 pm   #4
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Default Re: Type Of Hunts Capacitor

Thanks for the replies. I didnt recognise the white plastic casing on the Hunts I don't think I have encountered this style before. I don't' think Hunts were much better or worse than any others really. I also have never had a bad Mullard cap.

Thanks, Chris.
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Old 16th Sep 2020, 7:51 pm   #5
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Default Re: Type Of Hunts Capacitor

For those white Hunts, I would expect the end with the slight bulge around the cicumference (seal crimp?) to be +ve. The end plainly visible in the fourth picture looks like a can -ve connection.
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Old 16th Sep 2020, 10:35 pm   #6
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Default Re: Type Of Hunts Capacitor

I thought they had a blob of red paint on the + end. The 100 mfd in pic 5 has a crimped end which will be +.
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Old 17th Sep 2020, 12:28 am   #7
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Default Re: Type Of Hunts Capacitor

They are old enough to have the positive marked in some way, rather than the negative as now.
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