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Original Message
6SN7
Posted by sser2 on March 13, 2017 at 14:15:47:
is indeed a good driver for 2A3, but under many scenarios an additional voltage amplification stage may be necessary in front of 6SN7. If 6SL7 can be used instead, this additional stage can be dispensed with. Less is more, especially if you consider pain-in-the-butt stage coupling problems.