18. The pentode tube element that performs approximately the same
function as the beam-forming plates in a beam power tube is called a
19. The pentagrid converter tube shown in figure 90 of TM 11-662 is
a heptode that can be considered to be made up of two smaller tubes.
These two tubes are a
pentode and a hexode.
triode and a beam power tube.
20. A multiunit tube houses the electrodes for two or more tubes
inside one envelope.
Of the four multiunit tube symbols shown in
figure 4-2, which is the symbol for a triode-pentode tube?
Four multiunit tube symbols.