[Hallicrafters] SX-17 S-meter and variations

[Kenneth G. Gordon]

I am not that familiar with the various Halli "S" meter setups, 
but am wondering: how many Halli receivers simply have the 
meters mounted upside-down?

In many "S" meter circuits, the highest current in the 
metered stage would occur at minimum signal, and 
conversely, lowest current would occur at maximum signal. 

Therefore, in those types of circuits, a normal meter would 
rest against the right end of the scale at minimum signal, but 
against the left stop when the receiver was off.

In order to correct this most easily, the meter would be, 
simply, mounted upside-down, OR a special, "back-wards 
reading" meter would have to be installed.

If either of these were the case, when the receiver was off, 
the meter would rest against the RIGHT stop.

Realizing that most receiver manufacturers would not 
normally want to go to the added expense of a special 
meter, mounting a normal meter upside-down would be a 
standard practice.

It seems to me that many National receivers (HRO-50/60?) 
do this.

Thoughts?

Ken W7EKB