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Old 3rd Dec 2022, 11:28 pm   #80
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
Posts: 4,935
Default Re: Improving Selectivity In Vintage Receivers

Well, I am just "playing" with that little receiver originally described in the April '66 QST as a bit of fun.

As reported in the thread https://www.vintage-radio.net/forum/...d.php?t=195648, the original (WWII) crystals used in that radio are just unobtainable now, but people are reporting tolerable results using the small ceramic filters.

I'd go to my TS530 and IC718 (sorry) for serious listening. The QST Rx is just a "little winter project". That being so, do you think the extra transformer would work in the configuration shown or have I missed something?

B
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