I have an Anthem Pre 1 preamp.I'd like some advice about which of these tubes wouldyou recommend: Electro Harmonix 12AT7,Phillips NOS 12AT7,Sylvania NOS 12AT7,GE NOS 12AT7,Westinghouse NOS 12AT7. Thanks in advance for your kind attention!
consider a ge 5751 black plate in lieu of any of the above. a second choice would be a ge 5814 black plate. choice three would be mullard 12ax7 longplate.
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