what do I replace...?

9am53 · 3rd May 2005, 01:58 AM

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

9am53 · 3rd May 2005, 01:59 AM

here is the schem for my amp

9am53 · 3rd May 2005, 08:46 PM

those resistors and caps that I am inquiring are from my amp...

leadbelly · 3rd May 2005, 09:28 PM

What are you trying to do? What do you replace => to do what?

dhaen · 3rd May 2005, 09:32 PM

Ah, I'm glad it's not just me

I can't understand either....

9am53 · 4th May 2005, 03:10 AM

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

SY · 4th May 2005, 03:40 AM

For whatever reason, I can't see the second image or click on it. Do others see it?

karma · 4th May 2005, 04:13 AM

nothing here

SY · 4th May 2005, 10:17 AM

9am, you might want to report that second schematic.

9am53 · 5th May 2005, 02:14 AM

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

3rd May 2005, 08:46 PM	#3
9am53 diyAudio Member Join Date: Feb 2005 Location: Ontario	those resistors and caps that I am inquiring are from my amp... __________________ Guitar is Good

3rd May 2005, 09:28 PM	#4
leadbelly diyAudio Member Join Date: Dec 2002 Location: Calgary, Alberta	What are you trying to do? What do you replace => to do what? __________________ Aerodynamics are for people who can't build engines. Enzo Ferrari

4th May 2005, 03:10 AM	#6
9am53 diyAudio Member Join Date: Feb 2005 Location: Ontario	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 __________________ Guitar is Good

4th May 2005, 03:40 AM	#7
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	For whatever reason, I can't see the second image or click on it. Do others see it? __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

4th May 2005, 10:17 AM	#9
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	9am, you might want to report that second schematic. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

3rd May 2005, 09:32 PM	#5
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Ah, I'm glad it's not just me I can't understand either....

4th May 2005, 04:13 AM	#8
karma diyAudio Member Join Date: Feb 2003 Location: hamilton,ontario	nothing here

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