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Old 24th February 2006, 12:26 AM   #1
bst is offline bst  United States
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Default Anyone have curves for a 5HC7?

I recently picked up a large quantity of NOS Tung-Sol 5HC7 tubes.
It's an interesting dissimilar dual triode, with the sections having a mu of 23 and 100, respectively, and reasonably low Rp. Max plate voltage is 330v, but the datasheet gives operating conditions only for 150 volts, with no curves at all.

Has anyone used this tube, or plotted curves for it?

Thanks.
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