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#1
Posted to rec.audio.tubes
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NRI Model 70 Tube Tester Settings for EL34, KT88
Can anyone help me with test settings for EL34 and KT88 for the NRI
Model 70? Thanks a lot. |
#2
Posted to rec.audio.tubes
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NRI Model 70 Tube Tester Settings for EL34, KT88
Same as the 6CA7 for the EL34. And for the KT88/6550, excepting the
bias. The bias on the KT88 will be approximately 1/4 that of the EL34/6CA7. 6L6/5881 has a bias (on a Hickok) of 3.3V, but all the same pin settings. 6CA7/EL34 has a bias of 5.5 V KT88/6550 has a bias of 1.4V All other settings are the same. Now, if the NRI unit is only an emissions-tester, then all settings will be the same. Mind the line-voltage setting. An emissions tester is NOT a good way to test power-tubes except at the very-most-basic level.... filament, shorts and gas. And you cannot match in any way, shape or form with an emissions tester. At all. Peter Wieck Wyncote, PA |
#3
Posted to rec.audio.tubes
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NRI Model 70 Tube Tester Settings for EL34, KT88
Thanks Peter.
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