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Philco 90 vs 650B
Ron Ramirez
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#5

10-23-2008, 05:06 PM
Also consider the fact that the Model 90 has Philco's "double tuned input curcuit"; i.e. two tuned circuits ahead of the RF amplifier tube, which is designed to provide sharper selectivity.
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Ron Ramirez
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Messages In This Thread
Philco 90 vs 650B - by etech - 10-23-2008, 11:45 AM
Re: Philco 90 vs 650B - by Chuck Schwark - 10-23-2008, 12:05 PM
Re: Philco 90 vs 650B - by etech - 10-23-2008, 02:59 PM
Re: Philco 90 vs 650B - by Chuck Schwark - 10-23-2008, 03:36 PM
Re: Philco 90 vs 650B - by Ron Ramirez - 10-23-2008, 05:06 PM
Re: Philco 90 vs 650B - by etech - 10-23-2008, 05:16 PM
Re: Philco 90 vs 650B - by BDM - 10-24-2008, 10:20 AM
Re: Philco 90 vs 650B - by Chuck Schwark - 10-24-2008, 11:13 AM
Re: Philco 90 vs 650B - by BDM - 10-24-2008, 11:49 AM



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