Tubes Asylum

RE: Question about Mullard 5AR4/GZ34

73.4.150.110

dadbar

In Reply to: RE: Question about Mullard 5AR4/GZ34 posted by Alpha Al on November 26, 2014 at 11:09:46

IIRC, by the time that IEC labeling came around, I think RCA had already moved on to their newer late 60's logo and box design.

Follow Ups:

RE: Question about Mullard 5AR4/GZ34 - Tre' 21:29:27 11/26/14 (2)
I don't know if this is the answer but I found this,

"IEC Servicemaster bought the rights to market Mullard tubes during the 1960's and 70's, so many Mullard tubes are dual marked "IEC Mullard". These are still genuine Mullard tubes."

And this, speaking of the RCA boxes "The "new" RCA logo appeared in the late 1960's"

So it seems that there could have been an overlap assuming IEC used their label from the start on the Mullard tubes.

I also found the above pic, 1966? 12ax7.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
- RE: Question about Mullard 5AR4/GZ34 - Nunki 01:24:19 11/27/14 (1)
  do�nt wonder if you find faulty tubes in boxes! in former times often technicians came along for service, pulled a defect tube from gear, swapped it back in the new box and just left it the case of that amp or radio. (an old technician once confessed such popular quirk to me...).
  
  N.
  
  The times, they are changing...
  - RE: Question about Mullard 5AR4/GZ34 - Tre' 08:55:12 11/27/14 (0)
    Yes, that happened all the time but in this case the 5ar4 looks brand new and the RCA box is labeled Made in Great Britain just as RCA did back in the day.
    
    I think he has a real, probably NOS, Mullard tube.
    
    I have 6 of them, 4 in RCA boxes and 2 in GE boxes all in various states of "washed and relabeled" to "partially washed and partially relabeled" to "original label" and GE/RCA just bought them from Philips and stuffed them in the "RCA/GE" boxes.
    
    I also have 2 F31 (fat base) 5ar4s labeled Mullard that are used but test as new that I should sell. They seem to bring good money on ebay.
    
    Tre'
    Have Fun and Enjoy the Music
    "Still Working the Problem"

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