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Antique Radio Technical Forum


Posted by BobB on 07/03/2009 14:57


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:Attention. . . ATTENTION. . . . all Technophiles. . . all ships at sea. . . . etc . . . .
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:With no one to consult with, from from the '20-30's, thereby giving me any POSITIVE technical referencing, I went into my high researching mode. Dusting off my old mortarboards and doing some DEEP delving , I came up with this info, that finally puts to rest, my need to positively know about the intricacies of an " Air Cell ".
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:Initially I knew it was not even remotely associated with a " Bias Cell ", some times used for the supply of a grid biasing to a circuit. That current, of course, being in the infinitestimal microamperes of current draw.
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:We know that the unit would instead, need to supply in the decades of milliamperes for a filament string.
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:I had, up to this time, just considered the "Air Cell " to be in the technical category of the lead acid cell with its slightly greater than 2 VDC output, but then not down as low as the 1.5 VDC of a zinc carbon cell.
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:Thanks to the meeting of technical education needs of the technically inquisitive, back in those olden times, here is a technical write up from the magazine. . . Popular Science . . . at the introduction times of the "Air Cell".
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:I fully comprehend it now, whereas at its writing time, I would have been having a hard time grasping it as a 3 year old.
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:Now, as a do-it-yourself project, seems the only exotica being the porous carbon electrodes. . . . I wonder how well compressed and molded "Bucky Ball" Graphite clusters would work, that certainly would provide the most exacting manner of accomplishing a UNIFORM porosity !
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:Pee Ess. . . .I just HAD to also include the "page filler" article on "Mud Showers"
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:73's de Edd

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:"AirCell " Techno Referencing Articles. . .info :
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:Hi Edd, interesting that you bring this up. This technology is actually still being used today. The military currently uses zinc-air batteries for its radios. I beleive they consume about 24V Here is a link if you want to check out: http://www.defense-update.com/products/z/zinc-air-battery-new.htm
I think Duracell also makes air-cell batteries for hearing aids. Just an FYI. BobB

"Air Cell" Techno-info 
Edd 07/03/2009 02:50 
Warren 07/03/2009 11:16 
BobB 07/03/2009 14:57 
Brian 07/04/2009 20:28 

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