FormerlyKnownAsMaddnotez
Active member
Specifically the i63 12ax7. Are they all the same or is one specific rebrand better than another?
J
just42dave
Well-known member
Pretty much the same. Good tubes.
SQUAREHEAD
Well-known member
Yep, all the same, ‘good’!
Philips, Hammond, Amperex, Telefunken, Fisher, Rogers, Heathkit (etc) all relabelled Mullards in the ‘60’s and ‘70’s…
Just look for the 4 digit Blackburn (Mullard) factory ‘Bxxx’ date code and of course, the ‘I63’ code in same area.
On a side note, the Philips branded Mullards have been some of the best monster toned I63 Mullards I’ve had great luck with.
… but we’re cutting hairs here, any I63 that tests great is a phenomenal tube in my opinion?
Philips, Hammond, Amperex, Telefunken, Fisher, Rogers, Heathkit (etc) all relabelled Mullards in the ‘60’s and ‘70’s…
Just look for the 4 digit Blackburn (Mullard) factory ‘Bxxx’ date code and of course, the ‘I63’ code in same area.
On a side note, the Philips branded Mullards have been some of the best monster toned I63 Mullards I’ve had great luck with.
… but we’re cutting hairs here, any I63 that tests great is a phenomenal tube in my opinion?
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SQUAREHEAD
Well-known member
Also, if you have a Marshall or whatever amp that’s just too bright, get an I61 code Mullard, which is a warmer fatter tone without that aggressive upper mid attack/push.
Personally, I have a dozen of these I61’s, but I much prefer the I63’s for rock / metal tones by far!
Personally, I have a dozen of these I61’s, but I much prefer the I63’s for rock / metal tones by far!