[Hallicrafters] Sylvania 0A2


David C. Hallam dhallam at knology.net
Thu Feb 9 17:11:13 EST 2012


I certainly may be mistaken, but I thought all of these voltage 
regulator tubes were slightly radioactive using the ionizing radiation 
to initiate the discharge.

David
KW4DH

On 2/9/2012 5:03 PM, James Liles wrote:
> Anybody know why some Sylvania 0A2’s use a radioactive component in the design and do others?
>
> Kindest regards Jim K9AXN
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