[Hallicrafters] SX-17 S-meter and variations

[Howard Weeks]

I checked a number of my Halli receivers when this subject come up
and found them zeroing to the right - SX-71s as well.  These meters 
were designed to mount that way since the scales on them are right 
side up.  

On 14 Mar 2008 at 9:05, Kenneth G. Gordon wrote:

> 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
> ______________________________________________________________


Howard Weeks
Harlem, GA 
K5JCP