[Milsurplus] When You Can't Get an IF Can

David Stinson arc5 at ix.netcom.com
Tue Sep 29 07:26:53 EDT 2020


Good Morning.
Theoretical situation-
You have an IF transformer with an open primary.
For whatever reason, you cannot get a replacement
or suitable substitute.  Some of you will recognize
this diagram:

https://photos.app.goo.gl/qtLG7oEEP73Lg7Yt6

Possible solution:
Use a 455 KC Ceramic Resonator-

https://photos.app.goo.gl/SbYwxAEzubXCkGU27

The 10 Ohm resistor is because that was the DC
resistance of the secondary winding.

Thoughts?

73 DE Dave AB5S


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