Mixed 12AT7 tubes for MC275 MK VI?

Lockheed Mar

New Member
Hi everyone,

Des the MC275 can run normal with mixed 12AT7 tubes? I've two MC275 MK VI and recently change 4 pairs of 12AT7 (2 pairs per amp). The problem is I have 3 pairs CV4024 Mullard and 1 pair 12AT7 Brimar.

Thank you very much for helping :)
 
Hi everyone,

Des the MC275 can run normal with mixed 12AT7 tubes? I've two MC275 MK VI and recently change 4 pairs of 12AT7 (2 pairs per amp). The problem is I have 3 pairs CV4024 Mullard and 1 pair 12AT7 Brimar.

Thank you very much for helping :)

Should be fine if they are used in a mirror image fashion between the two monoblocks
 
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