Thread: 12hp4 crt
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Old 09-13-2018, 10:17 PM
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grimer grimer is offline
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Join Date: Sep 2006
Location: Jim Thorpe,PA
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12hp4 crt
Picked up a round 12" crt the other day. Assumed it was a 12LP4,but it is a 12HP4..Cannot find any info about it.
Anyone know anything about this tube?
Thanks
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