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Re: [Amps] 381LR Cornell Dubilier date codes?

To: Carl <km1h@jeremy.mv.com>, g8on@fsmail.net, amps@contesting.com
Subject: Re: [Amps] 381LR Cornell Dubilier date codes?
From: Alan Ibbetson <alan@g3xaq.net>
Date: Tue, 21 Jan 2014 16:59:14 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
On 21/01/2014 16:05, Carl wrote:
The latter would be my guess, but I didnt think the LR was out that early.

I can't find a press release from CDE and there's no date on their catalogue page but FWIW Digikey didn't begin carrying them until 2011

http://www.digikey.com/us/en/press-release/cornell_dubilier.html

Call CD

I've emailed them (calls from the UK are expensive). I'll let you know what they say.

I don't have anything to test the ESR on such big capacitors. I've run one of them (slowly) up to 450v and the leakage current is around 200uA. After an hour the capacitance measures 412uF. This doesn't prove much but at least at first sight they appear OK.

73, Alan G3XAQ
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