"sparky" schreef in bericht
...
See this picture HR)-60

http://www.universal-radio.com/CATAL...xvr/HRO60.html

it has a meter with the zero on the left.

On Dec 21, 7:39 pm, Kenneth Scharf wrote:
sparky wrote:
Why is the meter 'zeroed' against the right peg, is it
broken?
Or did National design it that way because they had a
backwards meter
circuit that pulled full current with zero signal?

This is a backward meter by National. The meter deflects left
when
current flows.

The radio must have had a backwards meter amplifier then.
Weird.
Guess one could design a proper solid state amplifier to make
it work,
but you'd have to 'zero' the meter at full scale with no
signal.


The AR88 had also a meter with the zero left (when there was a
meter anyway, because many had no meter at all)
It measured the cathode current of one of the IF tubes. (Less
amplification/cathode current means more signal). That leads to
the
somewhat odd 'zero right' configuration

MRe PE1NQr