Name that EL34!

LowRedMoon · 25th February 2006, 09:59 PM

The 2 tubes linked below came from a Dynaco ST-70 that I bought. There are 2 pairs of them. To thisgreenhorn, they look like Mullards. They are stamped "Made in Great Britain." One has a single halo getter and the other has a double halo getter. There are really no other distinguishing markings on them (other than the pin numbers, which I doubt are neccessarily distinguishing).

Tubes in general are pretty new to me, so please try not to laugh too hard at my inability to accurately identify these tubes.

I also received 2 RCA black-plate 7199s with the amp that look mint!

Tube 1 with single halo getter:

Tube 2 with double halo getter (the second image makes the halos look stacked atop of one another - this is due to the angle of the snapshot):

SHiFTY · 25th February 2006, 11:32 PM

Look like Mullards to me.

Have a look for a brown two line code near the bottom of the glass it should read Xf2 , 3 or Xf4 or similar... That would tell you for sure.

Also be careful of the printing- if you clean these tubes, don't wipe off the print!

LowRedMoon · 25th February 2006, 11:34 PM

Thanks, Shifty.

Tube #2 with double halo getter is certainly a Mullard:

Tube #1 - with single halo getter is marked "GT BRITAIN," has stapled plates, and a crosshatch on the top of the glass:

LowRedMoon · 25th February 2006, 11:56 PM

In my haste, I neglected to closely inspect tube#1's partner. It appears to be GE branded with a marketing name that I don't recognize, but is otherwise the same:

LowRedMoon · 26th February 2006, 05:52 AM

More images of the unknown GE tube:

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25th February 2006, 09:59 PM	#1
LowRedMoon diyAudio Member Join Date: Jan 2006 Location: Upstate New York	Name that EL34! The 2 tubes linked below came from a Dynaco ST-70 that I bought. There are 2 pairs of them. To thisgreenhorn, they look like Mullards. They are stamped "Made in Great Britain." One has a single halo getter and the other has a double halo getter. There are really no other distinguishing markings on them (other than the pin numbers, which I doubt are neccessarily distinguishing). Tubes in general are pretty new to me, so please try not to laugh too hard at my inability to accurately identify these tubes. I also received 2 RCA black-plate 7199s with the amp that look mint! Tube 1 with single halo getter: Tube 2 with double halo getter (the second image makes the halos look stacked atop of one another - this is due to the angle of the snapshot):

25th February 2006, 11:32 PM	#2
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	Look like Mullards to me. Have a look for a brown two line code near the bottom of the glass it should read Xf2 , 3 or Xf4 or similar... That would tell you for sure. Also be careful of the printing- if you clean these tubes, don't wipe off the print!

25th February 2006, 11:34 PM	#3
LowRedMoon diyAudio Member Join Date: Jan 2006 Location: Upstate New York	Thanks, Shifty. Tube #2 with double halo getter is certainly a Mullard: Tube #1 - with single halo getter is marked "GT BRITAIN," has stapled plates, and a crosshatch on the top of the glass:

25th February 2006, 11:56 PM	#4
LowRedMoon diyAudio Member Join Date: Jan 2006 Location: Upstate New York	In my haste, I neglected to closely inspect tube#1's partner. It appears to be GE branded with a marketing name that I don't recognize, but is otherwise the same:

26th February 2006, 05:52 AM	#5
LowRedMoon diyAudio Member Join Date: Jan 2006 Location: Upstate New York	More images of the unknown GE tube:

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