• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Anyone have curves for a 5HC7?

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bst

bst

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Joined 2005
#1
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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