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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: RE: 6SN-7's posted by Cousin Billy on January 5, 2015 at 04:04:23:
Just did a quick ebay search.
I haven't replaced my tubes in a long time, so forgot the actual designations.
6H13C is the same as 6N13S. This is the 6AS7G you should use.
Beware, there is no such thing as a matched pair. As this tube warms up, it's parameters change. If someone says it's a matched pair, it is only being tested with a fixed bias tester. This tube should be checked with a continuous bias machine.
As a fellow lucky owner of the MA-1, we get to bias the tube banks ourselves.
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Follow Ups
- Quick ebay search - Cousin Billy 05:14:20 01/05/15 (0)
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