Posted by Wayne Parham [ 64.216.179.54 ] on December 29, 2004 at 12:38:46:

In Reply to: tubes posted by jim denton on December 29, 2004 at 10:13:04:

Absolutely. But tube testers have a voltage adjustment, so it isn't fixed at a specific value. The voltage a tube is run at sets its operating point. Look at load lines and you'll see the differences. In the linear region, increasing voltage increases current by a proportional amount. Load lines plot the transfer curves.

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