Well the one on the right is a matsushita, made in japan, not too bad at all. Looks like the one on the left is an old mullard. Does it have a row of small codes on it anywhere?
mmm the one on the left looks like Mullard due to the smooth plate cut and colour tone.
The closest I've got is a pair of mullard EC90's and they both have "3" scribbled on the plates.
The closest I've got is a pair of mullard EC90's and they both have "3" scribbled on the plates.
I need a picture with better resolution to identify the one on the left...
I need to have a look at the bottom as well...
If the glass on the bottom is crystal clear, then it might be a Japanese tube, or a british one, either Trigon, or Brimmar (of their latest production).
If the left one has a diamond mark <> on the bottom, then you've got a gold🙂..... TFK!
I can see the left one having double mica on the top... Does anyone know which brands made tubes with tripple micas?
I need to have a look at the bottom as well...
If the glass on the bottom is crystal clear, then it might be a Japanese tube, or a british one, either Trigon, or Brimmar (of their latest production).
If the left one has a diamond mark <> on the bottom, then you've got a gold🙂..... TFK!
I can see the left one having double mica on the top... Does anyone know which brands made tubes with tripple micas?
Hi,
If the plates have horizontally spaced ribs AND there's no acid marking on the glass to be found it could very well be a SYLVANIA ECG U.S.A. 12AX7A from the Seventies made for export exclusively.
The profile of the tube fits the bill but it's hard to be sure from just a picture no matter how well taken.😉
Cheers,😉
If the plates have horizontally spaced ribs AND there's no acid marking on the glass to be found it could very well be a SYLVANIA ECG U.S.A. 12AX7A from the Seventies made for export exclusively.
The profile of the tube fits the bill but it's hard to be sure from just a picture no matter how well taken.😉
Cheers,😉
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