replacing missing loop antenna Philco 49-1405 - Printable Version

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+--- Thread: replacing missing loop antenna Philco 49-1405 (/showthread.php?tid=1837)

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replacing missing loop antenna Philco 49-1405 - radiorich - 05-10-2009

Hello everyone,
Ya I know it's me again !
Well I have another quick question dealing with this Philco model no. 49-1405 am/phono combo.
It's missing the internal loop antenna.
well in the schematic diagram all it shows is the resistance only 3.6 ohms .
There is a 5pf mica cap in parallel with it Far as a replacement I going to make new one up .
Any idea what lenght of wire to use there is a little of it left .
So I can figure the gauge of bare copper wire.
Sincerely Rich
P.S. heres the schematic again if needed
http://www.nostalgiaair.org/PagesByModel/646/M0013646.pdf

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Re: replacing missing loop antenna Philco 49-1405 - Ron Ramirez - 05-12-2009

Hi Rich

The 5 pF cap is in series with the external antenna lead.

Otherwise I'm afraid I can't help you much with this issue...

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Re: replacing missing loop antenna Philco 49-1405 - radiorich - 05-14-2009

Hello Ron,
Ya I noticed that after posting it .
Far as that antenna I'll see what I can come up with one guys on ARF gave me a idea .
HoW to figure what I need far as a antenna far as turns of wire and how to tune it using another radio set at the same 600 khz freg .
Sincerely Rich

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