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How Many Brimars Are There??

I've owned many of the Mullard ECC82 & ECC83 variants and currently have a pair of the Brimar CV4003/12AU7 Boxplates (love these tubes). Now I'm looking to replace a Mullard 12AX7/ECC83 with a Brimar, but how many versions of the 12AX7 Brimar are there?
  I'm looking for a legitimate CV4004 Half Wing/ Box plate, but I keep seeing Brimars marked as CV492, CV492/CV4004, 12AX7, and 7025. Most online dealers state that these versions are the same as the CV4004 Boxplate. This doesn't make sense since some of these tubes have long blackplates, some have gray short plates, and some have the Gray Half Wing/ Box plate.

I don't believe Brimar would mark their tubes "12AX7" at the factory since this UK tube is known as ECC83. It looks like some of the tubes for sale have been remarked with new Brimar logos; it's easy to tell when compared to a tube marked with a factory code.
Does anybody know the real story about the production of Brimar valves in the 1950's and 60's?


128x128lowrider57

Showing 4 responses by nonoise

nonoise's avatar
nonoise
10,578 posts
 
Looks like they might be the real deal after all. 😄
nonoise's avatar
nonoise
10,578 posts
 
Someone went to a lot of trouble to print those. They look sweet but....
nonoise's avatar
nonoise
10,578 posts
 
@lowrider57 
That's a tough call what with all the counterfeits out there and not really knowing if those are one offs or fakes. At least Jessee can advise you even if you don't buy from him.

I wish I knew more but alas, I don't.

All the best,
Nonoise
nonoise's avatar
nonoise
10,578 posts
 
Brent Jessee of BRENT JESSEE RECORDING HOMEPAGE would most likely know. 

Here is a list of what he has in stock re: 12AX7 tubes: 12AX7 Tubes in Stock. I went blind trying to find what you asked for. If he doesn't have it in stock, he'll still know of it.

All the best,
Nonoise
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