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Philco 71 E IF adjustment instability
#6

Thanks for the suggestions guys,
I ruled out the trimmer by opening it to min. capacitance and bypassing it with a modern trimmer which gave the same instability.
I removed the IF coils, tested them, and used a hot air gun to melt out old wax ( and hopefully moisture ) then melted in some new wax.
Will look at bypassing next.
Tried another ' 36' and '44' - much the same.


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RE: Philco 71 E IF adjustment instability - by sandbar40 - 08-03-2012, 12:37 AM



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