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Hallicrafters S-72
BrendaAnnD
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Posts: 1,108
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City: Tacoma State, Province, Country: Washington
#16

09-27-2013, 07:55 PM
    Marty,

That's just it. There IS no wire, nor any electrical connection of any kind. Maybe it's supposed to feed back through the B+ line, but I don't think so, or it would get to places it's not supposed to. Not a very good schematic here, but you can see it's a simple Hartley oscillator. It is actually difficult to make these NOT work.
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Messages In This Thread
Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 09:36 AM
RE: Hallicrafters S-72 - by morzh - 09-25-2013, 11:10 AM
RE: Hallicrafters S-72 - by Radioroslyn - 09-25-2013, 06:13 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-25-2013, 08:33 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 10:14 PM
RE: Hallicrafters S-72 - by marty - 09-25-2013, 10:35 PM
RE: Hallicrafters S-72 - by Arran - 09-25-2013, 10:36 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 12:48 PM
RE: Hallicrafters S-72 - by Mondial - 09-26-2013, 02:19 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-26-2013, 06:03 PM
RE: Hallicrafters S-72 - by marty - 09-26-2013, 06:28 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 09:05 AM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 10:28 AM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 03:43 PM
RE: Hallicrafters S-72 - by marty - 09-27-2013, 04:07 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 07:55 PM
RE: Hallicrafters S-72 - by BrendaAnnD - 09-27-2013, 08:00 PM
RE: Hallicrafters S-72 - by Arran - 09-27-2013, 10:07 PM
RE: Hallicrafters S-72 - by Mondial - 09-27-2013, 10:40 PM
RE: Hallicrafters S-72 - by marty - 09-28-2013, 12:16 AM
RE: Hallicrafters S-72 - by marty - 09-28-2013, 12:24 AM
RE: Hallicrafters S-72 - by Radioroslyn - 05-14-2018, 11:51 AM
RE: Hallicrafters S-72 - by jcassity - 05-15-2018, 08:43 AM
RE: Hallicrafters S-72 - by Radioroslyn - 05-18-2018, 03:50 PM



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  1. The PHILCO Phorum
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  3. Other Radios (Non-Philco)