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Old 3rd May 2005, 01:58 AM   #1
9am53 is offline 9am53  Canada
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Default what do I replace...?

hello boyshere is my latest question...I finally decided to try the baxandall circuit for tone. some old ampeg portaflexes use an almost identical circuit with some different r/c values, but I dont know which to change...should I replace resistors 10 and 11, and caps 5,6,8,9? thanks
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Old 3rd May 2005, 01:59 AM   #2
9am53 is offline 9am53  Canada
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here is the schem for my amp
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Old 3rd May 2005, 08:46 PM   #3
9am53 is offline 9am53  Canada
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those resistors and caps that I am inquiring are from my amp...
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Old 3rd May 2005, 09:28 PM   #4
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What are you trying to do? What do you replace => to do what?
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Old 3rd May 2005, 09:32 PM   #5
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Ah, I'm glad it's not just me I can't understand either....
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Old 4th May 2005, 03:10 AM   #6
9am53 is offline 9am53  Canada
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sorry guys, as I often tend to do I assume everyone knows what I am talking about so I dont explain myself enough. I intend to switch out the resistors and caps from my amp and put in the ones from the ampeg. I am converting my PA into a guitar amp, so the tone stack as is doesnt work, but I am not sure exactly how many of the resistors and caps to replace...will C5 and/or C10/R13 have to be replaced, or do they not have a bearing on the tone controls...thanks guys
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Old 4th May 2005, 03:40 AM   #7
SY is offline SY  United States
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For whatever reason, I can't see the second image or click on it. Do others see it?
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Old 4th May 2005, 04:13 AM   #8
karma is offline karma  Canada
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nothing here
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Old 4th May 2005, 10:17 AM   #9
SY is offline SY  United States
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9am, you might want to report that second schematic.
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Old 5th May 2005, 02:14 AM   #10
9am53 is offline 9am53  Canada
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hello, after what seems like an eternity of trying to make this thing fit 800x600 pixels here it is. R10 is 47K to ground. I guess what I am asking in a nutshell is whether I need only replace the r/c values within the tone stack, or if I need to change more ie, ones leading to and/or from the tone stack. thanks agian guys
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