[ARC5] Added detail re 1700kc xtal ask

[Tom Lee]

Hi Mike,

You may wish to consider a different IF for which rocks are more readily 
available (as I was typing this, I saw Steve J's reply pointing out yet 
another reason for considering a different IF). For instance, there are 
tons of chroma subcarrier crystals for NTSC andPAL. I see these going 
for $0.20 in quantities of 10 from Digikey, making it easy to buy a bag 
from which to find a good set of matched ones. A higher IF would also 
give you improved image rejection as an additional benefit. Would that 
be an option at all for you?

--Tom

-- 
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu

On 6/18/2024 11:43 AM, Mike Kana wrote:
> Hi all
> This is for a crystal filter. The RX designs I’m looking at are th HBR Rx or the 6-4 from the 1964 hand book
> If the xtal isn’t exactly 1700, a few KC either side would require some VFO trickery.
> Thx
> Mike
>
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