Gu-17 magic. Про ГУ-17.

What do we know.

Soviet propaganda claims that GU-17 (ГУ-17) is the same as QQE03/12.

Let`s check.

Exhibit A: Philips Datasheet 

Exhibit B: Old Tesla Datasheet 

Exhibit C: Ancient Tesla Datasheet

Exhibit 4: Graph from Russian forum.

Pa max power line is at 6Watts.

Another Russian forum

Current is 2 times higher. 

Why?

Halves are connected in parallel. Ug2 = 200v Pa max = 12w

That leads us to simple conclusion. Graphs in QQE datasheets are given for two halves of a tube connected in parallel.

Also in the description of AB1 push-pull amplifier current is lower then on graph.

Very approximately we can calculate some values 

to be continued