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Hallicrafters S-72
#10

The LO tracks pretty well, it's only off by perhaps 10 KHz at the top of the band. As I was going to sleep last night, I thought of something to try (can't really hurt much). I'm going to see if bending the plates out on the high end of the antenna section will give the edge I need. This is one of those tuners that's actually made to do that, with the slits every few degrees on the outside plates. Wish me luck.

I'll see if that will help (the resistor in the grid circuit). Just a bit tight in that part of the chassis, though. Interesting all this happens ONLY on the AMBCB.. the other three bands are actually very good.


Messages In This Thread
Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 08:36 AM
RE: Hallicrafters S-72 - by morzh - 09-25-2013, 10:10 AM
RE: Hallicrafters S-72 - by Radioroslyn - 09-25-2013, 05:13 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 07:33 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 09:14 PM
RE: Hallicrafters S-72 - by marty - 09-25-2013, 09:35 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 09:36 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 11:48 AM
RE: Hallicrafters S-72 - by Mondial - 09-26-2013, 01:19 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 05:03 PM
RE: Hallicrafters S-72 - by marty - 09-26-2013, 05:28 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 08:05 AM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 09:28 AM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 02:43 PM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 03:07 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 06:55 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 07:00 PM
RE: Hallicrafters S-72 - by Arran - 09-27-2013, 09:07 PM
RE: Hallicrafters S-72 - by Mondial - 09-27-2013, 09:40 PM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 11:16 PM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 11:24 PM
RE: Hallicrafters S-72 - by Radioroslyn - 05-14-2018, 10:51 AM
RE: Hallicrafters S-72 - by jcassity - 05-15-2018, 07:43 AM
RE: Hallicrafters S-72 - by Radioroslyn - 05-18-2018, 02:50 PM



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