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Atmasphere M-60's with Sophia 6SN7 tubes

I have recently purchased 4 used Sophie 6SN7 Tubes Grade A. I have received 2 of them. Ralph says to put one in the back row in the middle.

When I get the 2nd set (hopefully next week). Ralph says then to place them again in the back row but flanking the middle tube.
Note: There is not enough space to use all Sophie tubes in the back row due to there larger girth.

Have any of you used the Sophie tubes on the M-60's? And if so, did you use just one tube or did you use 2 tubes in each amp?


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Topic - Atmasphere M-60's with Sophia 6SN7 tubes - ozzyboy 15:22:08 03/25/17 (22)


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