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Philco 38-690 tweeter improvement
#35

GOOD NEWS!!

Well guys after digging around in the power supply chassis a little more last evening I found and repaired a problem. As I had stated this set was previously restored---very well I might add. Outstanding solder joints and routing etc. With that said I found a 1K resistor, for whatever reason, in the chassis that essentially bridged across one of the field coils for the tweeters. Icon_confused I removed it and now it plays even better! I am very pleased !! Icon_biggrin
I am at a loss as to why whomever did the restoration would have installed that resistor. It is not on the schematic. I have scratched my brain trying to make sense of it.

Plays great now!

Happy in Louisiana!
Dave


Messages In This Thread
Re: Philco 38-690 tweeter improvement - by Syl - 07-25-2008, 10:16 AM
Re: Philco 38-690 tweeter improvement - by Syl - 07-25-2008, 08:19 PM
[No subject] - by Ron Ramirez - 07-25-2008, 09:39 PM
[No subject] - by wonderwrench - 07-25-2008, 09:52 PM
[No subject] - by Ron Ramirez - 07-25-2008, 10:49 PM
[No subject] - by Dave Slusarczyk - 07-25-2008, 10:53 PM
[No subject] - by wonderwrench - 07-25-2008, 11:06 PM
[No subject] - by Ron Ramirez - 07-25-2008, 11:06 PM
[No subject] - by Ron Ramirez - 07-25-2008, 11:13 PM
[No subject] - by Dave Slusarczyk - 07-25-2008, 11:59 PM
[No subject] - by BDM - 07-26-2008, 12:40 AM
[No subject] - by wonderwrench - 07-26-2008, 12:48 AM
[No subject] - by wonderwrench - 07-26-2008, 01:30 AM
[No subject] - by Syl - 07-26-2008, 08:33 AM
[No subject] - by Ron Ramirez - 07-26-2008, 09:20 AM
[No subject] - by Syl - 07-26-2008, 11:52 AM
[No subject] - by Dave Slusarczyk - 07-26-2008, 03:33 PM
[No subject] - by wonderwrench - 07-26-2008, 03:47 PM
[No subject] - by wonderwrench - 07-26-2008, 03:53 PM
[No subject] - by Ron Ramirez - 07-26-2008, 04:40 PM
[No subject] - by Syl - 07-26-2008, 04:51 PM
[No subject] - by Syl - 07-26-2008, 04:55 PM
[No subject] - by Dave Slusarczyk - 07-26-2008, 05:50 PM
[No subject] - by Syl - 07-26-2008, 07:17 PM
[No subject] - by Dave Slusarczyk - 07-26-2008, 09:26 PM
[No subject] - by Syl - 07-26-2008, 11:11 PM
[No subject] - by Dave Slusarczyk - 07-27-2008, 01:02 PM
[No subject] - by Terry Judkins - 07-27-2008, 05:59 PM
[No subject] - by wonderwrench - 07-27-2008, 06:11 PM
[No subject] - by Dave Slusarczyk - 07-27-2008, 06:53 PM
[No subject] - by wonderwrench - 07-27-2008, 09:00 PM
[No subject] - by Syl - 07-28-2008, 10:21 AM
[No subject] - by Dave Slusarczyk - 07-28-2008, 05:10 PM
[No subject] - by BDM - 07-28-2008, 05:17 PM
[No subject] - by Ron Ramirez - 07-28-2008, 05:59 PM
[No subject] - by Dave Slusarczyk - 07-28-2008, 06:12 PM
[No subject] - by Syl - 07-28-2008, 08:33 PM



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