Any one know were to buy the fu-80 tube?

[ubuntupokemoninc]

I have a gu-81m that I have built a tesla coil with, but I want to build something with a gu-80 but they are really rare, I heard about the Chinese remake the fu-80, I've seen a couple of pictures, but does anyone know were I might purchase said tube?

sorry if this is under the wrong board

 

[HollowState]

FU, what a fitting prefix for Chinese tubes.

 

[TonyTecson]

first up?

 

[kevinkr]

I'd keep an eye out on eBay.

 

[Alexontherocks]

just out of curiosity, why would you want to use the gu80 when it is almost identical to the gu81m?

Why don't you try something different like one of those pulse tetrodes for radar use. Very high anode capability, huge current surge tollerance.

 

[voltagezone]

I got some of these russian GU80 in original box from military stock.
The one in the foto was made in 1961 so I would say it's a collectors item.
If anyone is still interested please send me a PM with an offer.







By the way, nice forum here.

 

[FullRangeMan]

FU, what a fitting prefix for Chinese tubes.

This was a good one.

Seems the FU acronym stand for Foreinger Unit.
The FU5 was the 805, so the FU80 may be the 800 tube (or not).
http://www.mif.pg.gda.pl/homepages/frank/sheets/049/8/800.pdf

 

[FullRangeMan]

On a brevis googled appear two options avaliable:
Aliexpress.com : Buy Medical equipment smcp fu 80 tube amplifier hi fi amplifier from Reliable hi fi amplifier suppliers on taojinmall.

Taobao Agent Bold fu-80 tube 199 yuan a - US $ 41.80

 

[FullRangeMan]

This is your lucky day GU81 also avaliable from a reliable seller:
''GSTube.com''. Tubes, sockets etc. Search result for <u>gu81</u>