Hi,
I've got a small B&K 606 Dyna Scan tube tester, using it recently for testing 6L6's. When I do the "shorts" test (you rotate the last knob to about 12 different positions or so), I get a short glow of the "short" lamp on position 10, then it goes away. It's not a transient flash like I see in several positions, but it actually stays glowing dully for a few seconds, then seems to dim and go away.
I don't follow how a "short" could behave like that in a tube. In the past, I seem to recall, I've also received a few NEW Ebay-sold 6L6 tubes that behaved the same way. As a matter of fact, I think they continued to glow the "short" light, if I remember right, in position 10 again, but very dimly. I expected a true short to cause the lamp to glow full tilt.
What does this mean?
I've got a small B&K 606 Dyna Scan tube tester, using it recently for testing 6L6's. When I do the "shorts" test (you rotate the last knob to about 12 different positions or so), I get a short glow of the "short" lamp on position 10, then it goes away. It's not a transient flash like I see in several positions, but it actually stays glowing dully for a few seconds, then seems to dim and go away.
I don't follow how a "short" could behave like that in a tube. In the past, I seem to recall, I've also received a few NEW Ebay-sold 6L6 tubes that behaved the same way. As a matter of fact, I think they continued to glow the "short" light, if I remember right, in position 10 again, but very dimly. I expected a true short to cause the lamp to glow full tilt.
What does this mean?
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