[TenTec] OMNI V 500 hz. filter

[Roger]

I did a lot of experimenting with the crystal filters 
15 to 20 years ago on the Argosy. I have all the
paperwork on my experiments somewhere but Can not find
them now. I believe that I ordered my crystals from
Jan's or one of the other crystal company's. I did
find that I could modify the 4 pole up to the 6 or 8
pole and could change them to the bandwidth that I
wanted, I kept many pages of info plotted but it is
among piles of records from the last 30 years.
KO4O
  
--- "Donald L. Schliesser" <donjan7 at earthlink.net>
wrote:

> I have 4 filters in the 6.3 Mhz. IF: 2.4, 1.8, .5,
> .25.  They all work, 
> but the 500 hz. has less output than the 250 hz. -
> even when I adjust 
> the PBT and the FADE/BP controls for max gain.  Gain
> is probably 25% or 
> so less, but definitely noticeable.  Could one of
> the crystals in the 
> filter have drifted?  Or be bad?  I have tried
> "exercising" the 
> connections by plugging and unplugging the filter
> per Don Prouty in the 
> Ten-Tec service dept.  Is this a fixable problem by
> sending back to 
> Ten-Tec?  Since their hourly rate is $60, maybe just
> as well to buy a 
> used one for $60-70 including shipping.  Anyone have
> any ideas?
> 
> Thanks, Donald K6RV
> 
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> 



 
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