[Milsurplus] TCS Loading Coil Wiring

[WA5CAB at cs.com]

There were several design changes at TCS-6 (handles being the most obvious).  
Another was relocation of the RF ammeter from the hot to the cold side of the 
output circuit.  And in the receivers, iron core IF transformers.  The only 
transmitter here at the house is an "A".  I have several "Non-A" over in 
Storage.  I'll take a look when I get a chance.

In a message dated 2/6/2006 7:58:38 PM Central Standard Time, 
smithab11 at comcast.net writes: 
> I was looking at two TCS transmitters this weekend (preparing for the CX 
> contest)  and could not figure out why the "loading coil setting on each  TCS 
> series transmitter was different for an identical  antenna load that was 
> switched between the two transmitters. 
> 
> I found that on  a CIH 52245-A the adjustable loading coil  "near end",( the 
> end nearest the front panel) is connected to the wiper on  
> S-103 COND switch (Series Parallel Switch) but on the other transmitter a 
> COL 52245 the "far" end of the loading coil was connected to the wiper on  
> S-103.
> Thus the turns counter readings are different. 
> 
> Does any one have a explanation as to why the difference in the  adjustable 
> loading coil wiring ? The wiring appears to be factory and not  changed by 
> one of the previous owners. ( I no longer question why hams change things )
> 

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at houston.rr.com> (Backup email)