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Old 19th April 2013, 01:46 PM   #1
diyAudio Member
Join Date: Apr 2013
Red face russian 1578 tube production years

Can somebody please advise whether the 1578 russian tube was produced in 1983?
I have bought one and it is stamped 1578 on the glass and on the MELZ stamp it has 0983
I was told that the real 1578 was manufactured up and until 1980 is this true?
The internals of the tube look the real deal but i am worried that it may be a fake because of the date code 0983
Can someone please help
thank you in advance
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Old 21st April 2013, 06:20 AM   #2
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Join Date: Jan 2010
I seen the 1578 tubes (MELZ, metal base) with a 1988 stamp
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Old 21st April 2013, 12:13 PM   #3
diyAudio Member
Join Date: Apr 2013
thank you for your info,it is just that read from a particular seller on ebay who insists that all 1578 tubes were made before 1980,i think he is wrong.I believe now that i have bought a genuine one made in 1983
regards michael
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