[Milsurplus] GRC-9 rec question

[Richard]

The holes above the capacitor are not for adjustment and are 
superfluous, but might be useful for signal tracing.  Mine show the nut 
holding the stator in alignment.  The adjustments are inductors on top 
and capacitors on the bottom.  There never trimmer caps mounted on the 
capacitor.  I own two GRC-9's have worked on at least  or five six more, 
and they are all the same.

Richard, AA1P

On 07/14/2014 03:37 AM, Hue Miller wrote:
> I have only this one rec on hand, nothing to compare it to but the 
> manual.
> TM-11-263  Fig. 110 page 165 shows top view. The C7 tuning cap appears
> to have trimmers on each section, with screw adjust and collar. These
> are visible also thru the openings in the cover marked C7A, B, C in 
> Fig. 160, page 222.  The rec I have here, you only see only the metal 
> plate of
> the rotor and a solder lug (unsoldered ) and a hole where
> an adjusting trimmer screw might be mounted, except it's not threaded.
> No other trimmers are mentioned in the manual except those accessible
> on the bottom of the rec - not on the top, where the C7 A,B,C cover 
> opening are.  Nor is any trimmer built into the C7 tuning cap, shown
> in the manual schematic.  So what gives? Was something removed by the 
> previous owner, or was this item left out in some manufactures?
> The standalone rec was robbed of the grill and nameplate. Maybe the
> perp was under the influence of that silly, evil surplus radio conversion
> manual from the 1980s that recommended you remove the receiver and
> discard the rest. -Hue Miller  ( Newport, Oregon )
> ______________________________________________________________
>
>