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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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19th Nov 2017, 11:45 pm | #1 |
Nonode
Join Date: Jul 2005
Location: Hull, East Yorkshire, UK.
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Russian Bathtub Capacitor
I have these Russian bathtub capacitors.
They have 2 x 0.1uf sections in the same slim case. Is the centre terminal always the common terminal for both sections? |
20th Nov 2017, 9:10 am | #2 |
Dekatron
Join Date: Nov 2006
Location: London, UK.
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Re: Russian Bathtub Capacitor
Photo please Neil? I use a lot of Russian kit!
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Al |
20th Nov 2017, 9:25 am | #3 |
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Re: Russian Bathtub Capacitor
Double types have two insulated columns, one for each half of the , cap with a lug or other connector to the case, sounds like what you are saying?
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Al |
20th Nov 2017, 10:29 am | #4 |
Nonode
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Re: Russian Bathtub Capacitor
Not the same value of capacitor, but the same 2-in-1 type.
One would assume the case to be negative, but it is painted and there are three terminals Last edited by Neil Purling; 20th Nov 2017 at 10:50 am. |
20th Nov 2017, 11:54 am | #5 | |
Dekatron
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Re: Russian Bathtub Capacitor
Quote:
Higher resolution photo, please. I can just see a tiny thumbnail that won't expand. I can read Cyrillic text so should be able to help!
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Al |
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20th Nov 2017, 1:14 pm | #6 |
Dekatron
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Re: Russian Bathtub Capacitor
Although the thumbnail does expand (to about twice the size) for me, it's still too low-resolution to read the text - or even to see whether there is anything in Cyrillic (which I also read from my O Level days).
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20th Nov 2017, 1:17 pm | #7 |
Dekatron
Join Date: Nov 2011
Location: Surrey, UK.
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Re: Russian Bathtub Capacitor
Do you have a device for measuring capacitance?- e.g. many DMMs. A few tests between terminals will give deductive pointers.
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20th Nov 2017, 1:52 pm | #8 |
Dekatron
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Re: Russian Bathtub Capacitor
It should be easy for me to read definitively if the picture is higher res...
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Al |
20th Nov 2017, 2:22 pm | #9 |
Dekatron
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Re: Russian Bathtub Capacitor
2 x 0.5 mfd +-10%...?
Lawrence. |
20th Nov 2017, 2:46 pm | #10 |
Dekatron
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Re: Russian Bathtub Capacitor
Thinking of the connection arrangement, rather than the actual value- i.e. if the measured outer-to-outer value was half the (either) outer-to-centre value, that would indeed imply centre common connection.
Don't know if the Russians stuck to a particular connection convention for multiple bathtubs, but the Americans certainly didn't, judging by the Scott RCH here! Some common to case, some isolated case, of the latter, some common to middle terminal, some to one end terminal. I suspect there was a specifying "recipe" to suit a particular physical circuit layout. |