Hi!
There are a lot of low quality fake "NOS" tubes on the net.
What do you think, is this tube fake or real?
Vintage Audio Tube ECC803S 12AX7 Long Plates Tesla | eBay
It seems to me rather fake. Can`t see getter ring mounting style.
http://www.jacmusic.com/nos/images/Fakes/ECC803S-2/Details2.jpg
Thank you for any help to catch the fakes!
There are a lot of low quality fake "NOS" tubes on the net.
What do you think, is this tube fake or real?
Vintage Audio Tube ECC803S 12AX7 Long Plates Tesla | eBay
It seems to me rather fake. Can`t see getter ring mounting style.
http://www.jacmusic.com/nos/images/Fakes/ECC803S-2/Details2.jpg
Thank you for any help to catch the fakes!
Thank you for answer!
Don`t know why the link doesn`t work.
The offer on ebay is:
The emission values are excellent: 0.95/0.95 mA
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Don`t know why the link doesn`t work.
The offer on ebay is:
[FONT=Arial, Helvetica, sans-serif]Have a look at this vintageaudio tube ECC803S made in Czechoslovakia byTESLA [/FONT]in the 1980's:
Old genuine production with 17mm long ribbed plates
This tube has been tested on a calibrated RPG70 tubetester:
(plate: +200 volts, grid: -2 volt => 0.50/0.50 mA = 100% new tube)
The emission values are excellent: 0.95/0.95 mA
An externally hosted image should be here but it was not working when we last tested it.
[FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]
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[FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]The item is located in Germany, the shipping costs [/FONT][/FONT][/FONT][/FONT][/FONT][/FONT][/FONT][/FONT][/FONT]
[FONT=Arial, Helvetica, sans-serif]for registered service (up to 500g) including insurance are:[/FONT]
[FONT=Arial, Helvetica, sans-serif]- Worldwide: US$ 10[/FONT]
[FONT=Arial, Helvetica, sans-serif]Combine auctions and save on shipping ![/FONT]
[/FONT][/FONT][/FONT][/FONT][/FONT][/FONT][/FONT] [FONT=Arial, Helvetica, sans-serif]- Worldwide: US$ 10[/FONT]
[FONT=Arial, Helvetica, sans-serif]Combine auctions and save on shipping ![/FONT]
This is a private auction. All sales are final.
Items are sold AS IS with no warranty expressed or implied !
This is also very interesting.
ECC803S TESLA FAKE TUBES
Of course, what one reads on the net is not likely to be absolute truth!
ECC803S TESLA FAKE TUBES
Of course, what one reads on the net is not likely to be absolute truth!
I contacted to seller and asked some more pictures to identify construction details.
And guess what? Ebay sent me message that "my bid was withdrawn" by someone (I guess by seller). So, probably my questions to the seller are not welcome.
Tubes are tough business
The jacmusic article is very infomative. Thanks for the link!
And guess what? Ebay sent me message that "my bid was withdrawn" by someone (I guess by seller). So, probably my questions to the seller are not welcome.
Tubes are tough business
The jacmusic article is very infomative. Thanks for the link!
Its a fake, no question about it. its got a round top. And that implies JJ manufacture.
can you buy a JJ tube for 10 USD
All small frame grid valves have a similar anode shape. The technology requires it.Regenpak said:As an aside, I can't help but notice the "true frame grid" ECC803S looks a lot like an ECC88 (of E88CC, if you will).
It can't be assumed that an ECC803S or E83CC is frame-grid or not - depends on the manufacturer.
Not necessarily. A frame-grid valve needs an indented anode, but an indented anode does not necessarily mean a frame grid.
Any valve characteristic can be obtained in various ways, so different constructions don't necessarily mean different characteristics. An ECC83 is still an ECC83 - quite low transconductance.
Any valve characteristic can be obtained in various ways, so different constructions don't necessarily mean different characteristics. An ECC83 is still an ECC83 - quite low transconductance.
Hello ,
the Tesla frame grid ECC83 is named E83CC and has a similar construction like the Telefunken ECC803s and you can buy this tube here :
E83CC TESLA - Artikeldetailansicht - Unser Online-Shop
The picture from Jac`s site , which I send to him , is from my little collection :
An other good article is here , but only in german , sorry :
ECC 803 S - Faelschungen
Kind regards , Alexander .
the Tesla frame grid ECC83 is named E83CC and has a similar construction like the Telefunken ECC803s and you can buy this tube here :
E83CC TESLA - Artikeldetailansicht - Unser Online-Shop
The picture from Jac`s site , which I send to him , is from my little collection :
An externally hosted image should be here but it was not working when we last tested it.
An other good article is here , but only in german , sorry :
ECC 803 S - Faelschungen
Kind regards , Alexander .
I just noticed this thread , I have been noticing a lot of very poor fakes around as well as used tubes tarted up in crispy new boxes . I'm 99% sure of the origin and it's a supplier here in the UK who at one time was putting reproduction oval GEC stickers on tubes to increase value , this time round it's the full works which I find particularly disturbing . I won't name them in public but will oblige if sent a PM . Just spotted these on Ebay which I believe come from this source , emailed him and he appears serious and has taken the listing down right away
1pcs Tesla ECC803S CV492 CV4004 ECC83 12AX7 Gold Pin Special Qaulity | eBay
It's a recent production JJ ECC83 with pins gold plated , rebranded as Tesla ECC803S and supplied in dodgy looking boxes . Wrong plate structure for a start which gives the game away in an instant . This sort of crud is being sold all over the world and unsuspecting buyers are the ones losing out most as well as the unsuspecting sellers stocking these .
316A
1pcs Tesla ECC803S CV492 CV4004 ECC83 12AX7 Gold Pin Special Qaulity | eBay
It's a recent production JJ ECC83 with pins gold plated , rebranded as Tesla ECC803S and supplied in dodgy looking boxes . Wrong plate structure for a start which gives the game away in an instant . This sort of crud is being sold all over the world and unsuspecting buyers are the ones losing out most as well as the unsuspecting sellers stocking these .
316A
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