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Old 15th February 2015, 05:10 PM   #1
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Default Can Capacitor

Hello,
Well here is another novice question. Restoring an amp from chassis up. I am re assembling now and even though I took pics or it from every angle and know from those how the can capacitor was before does it matter how it is mounted on the chassis. I looked it over from top to bottom and the only writing is the label of the make and capacitance of the can. Is there a sequence say like a tube? Thanks everybody.

A novice in training.
Chris
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Old 15th February 2015, 05:17 PM   #2
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The pin connections are important as some are positive connections and some are negative. Get it wrong and the can will explode.
Some cans just have 2 connections but many valve amps had multi capacitors in one can.
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Old 15th February 2015, 05:18 PM   #3
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This one has four plus the twist locks
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Old 15th February 2015, 05:19 PM   #4
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It is a Mallory 40/30/10/20
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Old 15th February 2015, 05:20 PM   #5
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Quote:
Originally Posted by beatonchris View Post
This one has four plus the twist locks
Have you got a picture of the connections ?
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Old 15th February 2015, 05:22 PM   #6
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Hold on b right with ya
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Old 15th February 2015, 05:23 PM   #7
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Quote:
Originally Posted by beatonchris View Post
It is a Mallory 40/30/10/20
I found a couple using google but none shows the pin out.

Did you not write down the connections when you disconnected the wires ?

Even if you know the pin out do you know which wire connects to each pin ?
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Old 15th February 2015, 05:28 PM   #8
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Yes i ha e a schematic and pics so i will be ok pretty sure. Here are some pics.uploadfromtaptalk1424024887040.jpguploadfromtaptalk1424024905106.jpg
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Old 15th February 2015, 05:31 PM   #9
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It looks like 3 capacitors with a common ground.
Does the terminal end have markings on it for what each capacitance for that pin is ?
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Old 15th February 2015, 05:39 PM   #10
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If it's a 40/30/10/20 the metal case should be the ground. The case tabs were typically soldered to the chassis. The cap tabs should have a symbol denoting which is which. A square, triangle, circle, so on and it will match up with one of the mfd ratings on the label.
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