Hi,
I have a "basic" tube tester, a Superior TV-11. I can test for quality, short, open, noise... I made some noise tests with a earphone without any result. I only ear hum. Even with a microphonic tube (remove from an audio amp)! I tap on the tube and I can't ear any microphony! A noisy tube is not detectable in this test too.
Questions are:
Can I test tube for microphony with my tester?
Can I ear a noisy tube with the noise test (tube that make hiss in my amp)?
My tester is too cheap? Maybe!!
Thanks!
Jean-Francois
I have a "basic" tube tester, a Superior TV-11. I can test for quality, short, open, noise... I made some noise tests with a earphone without any result. I only ear hum. Even with a microphonic tube (remove from an audio amp)! I tap on the tube and I can't ear any microphony! A noisy tube is not detectable in this test too.
Questions are:
Can I test tube for microphony with my tester?
Can I ear a noisy tube with the noise test (tube that make hiss in my amp)?
My tester is too cheap? Maybe!!
Thanks!
Jean-Francois
Jean-Francois,
I'm not familiar with this tester, but when it has a noise test mode and a headphone output, you should at least hear tapping on a (microphonic) tube.
Maybe this test mode is unservicable ?
Check at least the manual for what it is capabel of.
Dick.
I'm not familiar with this tester, but when it has a noise test mode and a headphone output, you should at least hear tapping on a (microphonic) tube.
Maybe this test mode is unservicable ?
Check at least the manual for what it is capabel of.
Dick.
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