[Johnson] Re: [National] Need cathode/plate meter advice for 1 tube xmtr project

[Glen Zook]

That is exactly what virtually all of the boat anchor
transmitters do including Collins, Heath, Johnson,
etc.  You just have to remember to subtract the
current that the other elements have from the total
current to get the plate current.

For example, a single 6146 draws approximatly 12.5 mA
for the screen, etc.  A pair draws approximately 25
mA.  You have to subtract this from the "plate"
current on transmiters like the Johnson Valiant, Heath
Apache, DX-100, and a lot of the others.

Glen, K9STH


--- Cal Eustaquio <catman351@digitalputty.com> wrote:

Here's the question: I'd like to avoid putting the
plate meter in direct line with the plate supply.
Instead, I would like to put the meter in series with
the cathode circuitry so as to avoid high plate
potential normally found with a plate circuited meter.

=====
Glen, K9STH

Web sites

http://home.attbi.com/~k9sth
http://home.attbi.com/~zcomco

__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com