[time-nuts] Sulzer 5A & 5P PSU/battery question

[David]

I have used NiMH D cells as directly replacements for NiCd D cells in
devices that have slow, 0.1C rate or 14 hour, chargers without
problems.  It takes longer to fully charge since the NiMH cells have
about twice the capacity but then they last about twice as long.

The price for the MiMH cells is not cheap though.  A less expensive
option would be using a pair of 12 volt lead-acid gel cells if you
modify the charging circuitry to float charge them to 27.6 volts.

On Thu, 01 Nov 2012 21:51:21 +0100, Magnus Danielson
<magnus at rubidium.dyndns.org> wrote:

>Fellow time-nuts,
>
>Yesterday I picked up a Sulzer 5A + 5P without batteries. It is supposed 
>to have 21 D-cell NiCd batteries, but today those are not easy to come 
>by, so I wonder if I can either run the PSU safely without battery or if 
>I can swap in lead-batteries.
>
>I know that some of you have these, so I would value your input.
>
>I did try to run it a short time without batteries, but the 5 MHz output 
>did not work very well, so I turned it off.
>
>Cheers,
>Magnus
>
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