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Old November 27th 05, 11:48 AM posted to uk.radio.amateur,rec.radio.amateur.homebrew
MonoCalculus
 
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Default What's in a battery, these days?

When I was a lad, old dry cells were a source of interesting scrap,
carbon rods, zinc flashing, brass strips and brass terminals.

Are zinc-carbon cells still sold today, or are the AA, A, C and D
cells made up of more insidious (and poisonous) compounds?

The metallically-sealed cells look a little more daunting
than the bitumen-sealed zinc cans of yore.

What do we get when we rush down to our local hardware stores
apart from fork handles?

PS. I'm interested in getting hold of one of those wet Leclanche
cells, the sort with the baekelite moulded tops, that were
used to power door bells. Anybody got one for disposal? ISTR
that there was no depolarising agent fitted which served a useful
purpose - that of preventing annoying long presses of the bell-push.

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Old November 27th 05, 11:53 AM posted to uk.radio.amateur,rec.radio.amateur.homebrew
huLLy
 
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Default What's in a battery, these days?

MonoCalculus wrote:

PS. I'm interested in getting hold of one of those wet Leclanche
cells, the sort with the baekelite moulded tops, that were
used to power door bells. Anybody got one for disposal? ISTR
that there was no depolarising agent fitted which served a useful
purpose - that of preventing annoying long presses of the bell-push.


I thought the police didn't bother ringing the doorbell as you are so well
known to them?
--
huLLy
Mobile phone 07976 123278
ICQ 136-987-925


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Old November 27th 05, 12:00 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
MattD..
 
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Default What's in a battery, these days?

After replacing MonoCalculus with a small shell script on Sunday 27 Nov
2005 11:48, the following appeared on stdout:

Are zinc-carbon cells still sold today, or are the AA, A, C and D
cells made up of more insidious (and poisonous) compounds?


Just don't start prying Li-Ion cells to bits. They're rather nasty if you
manage to puncture them.
--
Radio glossary #13
Integrated circuit: You have the only one in existence. This theory will
be borne out when you try to obtain a replacement.

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Old November 27th 05, 02:29 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
jim.gm4dhj
 
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Default What's in a battery, these days?

don't know but they die after about 3 years.....


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Old November 27th 05, 10:51 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
Dave
 
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Default What's in a battery, these days?

jim.gm4dhj wrote:

don't know but they die after about 3 years.....


What do?

Dave


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Old November 28th 05, 06:26 AM posted to uk.radio.amateur,rec.radio.amateur.homebrew
jim.gm4dhj
 
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Default What's in a battery, these days?


"Dave" wrote in message
...
jim.gm4dhj wrote:

don't know but they die after about 3 years.....

What do?

Dave


They do.....


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Old November 27th 05, 05:12 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew
Bill Janssen
 
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Default What's in a battery, these days?

MonoCalculus wrote:

When I was a lad, old dry cells were a source of interesting scrap,
carbon rods, zinc flashing, brass strips and brass terminals.

Are zinc-carbon cells still sold today, or are the AA, A, C and D
cells made up of more insidious (and poisonous) compounds?

The metallically-sealed cells look a little more daunting
than the bitumen-sealed zinc cans of yore.

What do we get when we rush down to our local hardware stores
apart from fork handles?

PS. I'm interested in getting hold of one of those wet Leclanche
cells, the sort with the baekelite moulded tops, that were
used to power door bells. Anybody got one for disposal? ISTR
that there was no depolarising agent fitted which served a useful
purpose - that of preventing annoying long presses of the bell-push.



I understand that the old design cells are still made. If you buy the
cheap cells ($1.00 a dozen or so)
then you get the old style. But if you buy Alkaline batteries you get a
cell that has the Zinc in the center
and Carbon around the outside. Most of the Zinc and Carbon is powdered
in the Alkaline cells

Bill K7NOM
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