Its just over 10 years since I've used lead acid batteries as the lo
noise power option for a low phase noise reference source use in the
development of a jitter measurement instrument , we used discrete regs
rather than '317s etc, it worked fine but I can't pass on the details.
I still have the reference without the batteries which went for
recycling long ago, the possible new twist I've not seen noise data on
is not batteries but Ultracapacitors intended for regenerative breaking:
http://www.maxwell.com/products/ultracapacitors/products/d-cell-series
It's nice to try something new and being new might be a way to sidestep
environmental concerns.
Regards
David
Message: 7
Date: Thu, 11 Jul 2013 11:48:39 -0600 (MDT)
From: "Don Latham"<[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Subject: Re: [time-nuts] Lead acid battery noise levels
Message-ID:
<[email protected]>
Content-Type: text/plain;charset=iso-8859-1
But Hg batteries are So Moot! We're simply not allowed to have them or
make them. Nanny won't have them in the house.
I have a couple of Accutron clocks that would love to see a mercury cell.
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