Anyone heard of Y434 tube?
 

I couldn't find any information online about this tube. Any info is
appreciated.

There is a pair on e-bay -- sez SIMILAR TO 4CX250 EIMAC/VARIAN

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5726073349
--
The Anon Keyboard
I doubt, therefore I might be



"Prune" wrote in message
...
I couldn't find any information online about this tube. Any info is
appreciated.

Keyboard In The Wilderness wrote:
There is a pair on e-bay -- sez SIMILAR TO 4CX250 EIMAC/VARIAN

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5726073349
went for a good price. I think that is a Russian part number.

In article ,
says...

I couldn't find any information online about this tube. Any info is
appreciated.

Go directly to the Eimac website. They have added a whole line of newer
version tubes using the 'Y' identification for the series. Many are
similar to the older tetrodes, and many have weird shapes, and sockets.

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5726073349
went for a good price. I think that is a Russian part number.

That was me that bought them. I asked EIMAC, and they said they were a
version of 4X150A specialized for audio (= gold plated grid). Mystery
solved.