[Amps] Question re GU-74B grid current

[Val]

Carl,

The 800W labeling of GU74B wasn't fraudent, but a pretty fair. If this tube 
was designed by EIMAC, or other western company it would have been 
undoubtedly labeled 4CX800. Compare its size, grid and screen  to  4CX600 
and 4CX1000.
Underrating of GU74B proceeded from the political and economic system in 
Russia. It wasn't market driven, there was no competition, the price of the 
tube and the price per watt weren't of big importance. However it was really 
dangerous for the designers if the tube failed to meet its specifications. 
That's why they rather insured their lives by rating  the 800 watts tube at 
600 watts. This was corrected only 25 years later.


73, Val LZ1VB

> Yeah sure. A 600W rated tube fraudently labled 800W to grab US dollars.