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Old 02-03-2011, 09:58 PM
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Eric H Eric H is offline
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Join Date: Jun 2002
Location: So. Calif
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The filament pins are 1 & 12 the ones on either side of the index lug on the Bakelite base.

12LP4 info here:
http://www.google.com/url?sa=t&sourc...bWf4BA&cad=rja
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