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In Reply to: Re: Then again........ posted by spindrifter on July 23, 2002 at 18:31:29:
BVA logo means nothing , easy to find Brimars and Mullard marked 'foreign' that still had the BVA mark . I guess this just meant that the manufacturer was a member of the BVA and adhered to BVA quality controls . If they're old shield (and not bought from bugleman) they will be 1960s most probably . Chris mentioned that the 'M' shield type was the last produced . This is in fact incorrect , the last ones had no shield at all , simply the NATO stocknumber and datecode . Do a search of Ebay for Cv4003 and you'll see some with the NATO numbering in there somewhere . Quite frankly the later ones test very well with close matching (I have tested hundreds of the things for customers , it gets boring getting a CV4003 out of the factory case then testing it , then wrapping it back up , they all test the same with only a small imbalance!) but the sound from the old shield types is preferred , I believe . Mullard made these CV4003 up until 1986 , only the special quality types seem to have been UK made though , it appears that standard 'domestic' Mullard EL84 and ECC83 I have seen that were 1980s production were made in India . Prudent question : Anyone out there with a 10M Mullard that can let us know the codes . I'll be surprised if these were UK made
Follow Ups:
hi allHow do you spot fake ecc82/e82cc etc..
i have a some collection of mullards ( saved from parents loft) as well as a couple from ebay and shops all of which i fully believe to be the real thing.
but how do you spot the fakes?
The 'fakes' I mentioned are not fakes as such but relabelled late production . I recently did an 'ask seller a question' on ebay regarding some E88CC/Cv2492 (I'm not naming the culprit , we all know who he is already!). These had the flat dimpled disc getter as per late 1970s production but the valves had an old 'shield' logo as per 1960s (which would have had ring getter) . Dead giveaway really , the etches indicated that the valves were late production Cv2492 from 1975 . Also the seller had Cv4003 in what appeared to be fresh 'Mullard' boxes which did not look right at all , again a dodgy old 'shield'logo was printed on the glass . More than likely these were relabelled late production Cv4003 from the 1980s (nothing wrong with 1980's Cv4003 , I have sold hundreds with no complaint but apparently the older versions sound better) . Most valve faking seems to involve Yugoslavian manufactured valves (which use the old Philips/Mullard tooling so they look exactly the same) , then overprinting the glass . Many have been fooled ! Best always to check the etch codes with the seller first .
fb
where can you get info on the etch numbers?
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