[Amps] Tube sources

[Ian White GM3SEK]

Carl wrote:

>>> Svetlana is still made in Russia or one of its ex republics AFIK.
>>>
>> Although I don't think they have the full line they were producing. I
>> sure would like a couple of 4CX-1600Bs
>That tube was discontinued over a decade ago due to yield problems. I 
>was all set to build a 1296 amp with one as I already had power on 432.
>
You'd have been looking for the coaxial-based 4CX1600U, which is still 
available as the GS23B.

Unlike the 8938, which is a coaxial-based 8877, the 4CX1600U is a 
totally different tube from the 1600B, with a different manufacturer and 
development history. The confusing "4CX1600" markings were added by 
Svetlana, purely for the Western market.


-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek