[TenTec] "Low Note" 221 250Hz Filter Problem

[Peter Hoon]

Fellows,

Have the model 221 "low note" 250 Hz 9Mhz IF filter.  On my Xceiver, an Omni
6 Plus, late serial number, it is in the "N-2" position. Am aligning my S
meter with a 50 uV signal from Calibrated Sig Gen as described in operators
manual.

Have checked gain jumper (correct), and have reheated all solder connections
on the 221 filter circuit board.

All of my other 4 filters are fine, and are properly compensated for
insertion loss:  when engaged, and passband is set correctly, I get an S9
reading on S meter.

But my 221 filter is one S meter unit low, at S8, or 6dB low.

When examining the 221 filter, I note that one .001 5% capacitor (102J), in
serries with the third crystal in from one end, is missing.

Could someone check their 221 filter and let me know if a similar capacitor
is missing?  It could be that it was the manufacturers intent to remove the
capacitor from this position in the filter. Or, it could be an inadvertant
omission, and thus the cause of the insertion loss by one S unit.

Thanks,

Peter
VE1CHS