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In Reply to: RE: Somedays tube hunting goes better than others posted by Permanent Waves on September 12, 2021 at 07:08:28
I am not aware of Mullard EL34 with a metal base. The xf1 have the thick plastic base, while the latter series have the thinner brown base.
Is there an etched code on the glass? What shape and number of the getters? Fabulous score, just trying to figure out what you got.
Follow Ups:
Well now you are. These are the original earliest design of the EL34 with metal bases and foil disk getters. These came before the xF1 tubes and have the codes stamped in the metal and not acid etched into the glass like later tubes had
Sitting here on the Group W bench
Hi Permanent Waves.
Again awesome score. I have done some research and I believe those tubes are actually Phillips made in Holland branded Mullard. I do not believe Mullard actually ever made a metal base EL34. See below information found on Tube Classic audio site. Are you tubes the same as the picture? Some of the rarest and most wanted EL34s ever made!
Philips owned Mullard so its all the same at the end of the day on who made them. Yes they were made in the Phillips Holland factory and not the Blackburn Mullard factory. Most of these metal base ones you find have either Mullard or Bugle boy labels although the labels are rarely intact and still present. Sometimes you see them labeled mini watt. These are not the 2 piece getters which were mainly the prototype versions of the very first runs of these tubes. Mine are single disk getters but still extremely rare and unicorn to be found in this condition
Sitting here on the Group W bench
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