26 Sep
2008
26 Sep
'08
2:06 a.m.
On Thu, 25 Sep 2008, Tony Duell wrote:
There are basically 7 adjustments -- gain and cutoff
for the 3 video
amplifiers and the 1st anode voltage ('screen grid' across the Pond, in
the UK we call everything after the cathode and control grid an 'anode',
in the States, you have the cathode, several grids and one (final)
anode).
Well, apparently only in Great Britain since in Germany, we call that
'screen grid', too. Only the final anode is called anode.
All other electrodes in a normal tube besides the cathode are called
'control grid' (or just grid), 'screen grid', 'supressor grid' and
so on.
There are tubes with several control and screen grids, though, like
hexodes or octodes. But there are tubes with e.g. helper anodes as found
in thyratrons.
Christian