No ,

It uses a single 2 section tube


tube Pronunciation: \'tüb, 'tyüb\
Function:noun
Etymology:French, from Latin tubus; akin to Latin tuba trumpet
Date:1651

a hollow elongated cylinder;

electron tube

Main Entry:electron tube
Function:noun
Date:1922
an electronic device in which conduction by electrons takes place through a vacuum or a gaseous medium within a sealed glass or metal container and which has various uses based on the controlled flow of electrons




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Carl
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"William Sommerwerck" wrote in message . ..
Excuse me, but that circuit uses two tubes.