volume control schematic please

paulfk · 13th April 2009, 12:15 PM

I did a search really I did, so sorry for this if its been done a thousand times. I have a 20w/channel gainclone and want to wire in a volume control. I have been told that it goes between the input and output rca's.the volume control I have been looking at has signal input and signal output terminals, so am I right in guessing, rca input to signal input and so on. Also what size control do I need for 20w amp. i.e 50k, 100k, etc. Another potion is a shunt mod, any info on that would be nice too.

Beftus · 13th April 2009, 01:44 PM

Read this: http://sound.westhost.com/project01.htm

tinitus · 13th April 2009, 02:23 PM

Fore the B1 Nelson Pass also suggest a linear pot, probably because its cheaper and have better channel tracking than a cheap log

Its actually a "integrated" passive you suggest, so I think you should look fore 10-20Kohm

Monopots could be an option, but may not be very practical, and mostly a choise fore hardcore enthusiasts

Peter Daniel · 13th April 2009, 02:27 PM

I tried linear pots with GC but they didn't really work well.
With log pots, the value shouldn't be higher than 50k, 25K is preferrable if installed directly on the amp.

http://www.diyaudio.com/forums/showt...58#post1516258

tinitus · 13th April 2009, 02:29 PM

Quote:

Originally posted by paulfk

I have been told that it goes between the input and output rca's.the volume control I have been looking at has signal input and signal output terminals, so am I right in guessing, rca input to signal input and so on.

No, it goes in between input RCA connector and INPUT on your amp module

If you have a switch fore multiple signal source, it goes between this input switch and INPUT on amp module

But even with some experience I also sometimes find these things a bit confusing
Maybe why a preamp isnt always the best place to start fore a newbie

You can measure and find the ground pin
The one that doesnt change impedance when turning the pot should be input, and the other that does change would be out to amp
I hope Im right on this

paulfk · 13th April 2009, 02:55 PM

[QUOTE]Originally posted by tinitus
[B]

No, it goes in between input RCA connector and INPUT on your amp module

I thought that didn't sound right. I may have just misunderstood what I was told. thanks

tinitus · 13th April 2009, 03:07 PM

Quote:

Originally posted by paulfk

I thought that didn't sound right. I may have just misunderstood what I was told. thanks

[/B]

The "wrong" advise you got was actually right....that is if you were building a passive preamp

Your situation is different

Nuuk · 13th April 2009, 05:28 PM

This may offer you some help as well!

AndrewT · 14th April 2009, 12:10 PM

as usual, Nuuk has already published the answer.

jamesjmcgee · 15th April 2009, 01:14 AM

Does anyone have a copy of Pedja's DS1802 circuit? His pages are no more... and I would like to use these samples I was given.

Thanks
James

13th April 2009, 12:15 PM	#1
paulfk diyAudio Member Join Date: Oct 2008	volume control schematic please I did a search really I did, so sorry for this if its been done a thousand times. I have a 20w/channel gainclone and want to wire in a volume control. I have been told that it goes between the input and output rca's.the volume control I have been looking at has signal input and signal output terminals, so am I right in guessing, rca input to signal input and so on. Also what size control do I need for 20w amp. i.e 50k, 100k, etc. Another potion is a shunt mod, any info on that would be nice too.

13th April 2009, 02:27 PM	#4
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I tried linear pots with GC but they didn't really work well. With log pots, the value shouldn't be higher than 50k, 25K is preferrable if installed directly on the amp. http://www.diyaudio.com/forums/showt...58#post1516258 __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

13th April 2009, 02:55 PM	#6
paulfk diyAudio Member Join Date: Oct 2008	Re: Re: volume control schematic please [QUOTE]Originally posted by tinitus [B] No, it goes in between input RCA connector and INPUT on your amp module I thought that didn't sound right. I may have just misunderstood what I was told. thanks

13th April 2009, 05:28 PM	#8
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	This may offer you some help as well! __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

14th April 2009, 12:10 PM	#9
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	as usual, Nuuk has already published the answer. __________________ regards Andrew T.


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

13th April 2009, 01:44 PM	#2
Beftus diyAudio Member Join Date: Nov 2008 Location: Netherlands	Read this: http://sound.westhost.com/project01.htm

13th April 2009, 02:23 PM	#3
tinitus diyAudio Moderator Join Date: Nov 2005	Fore the B1 Nelson Pass also suggest a linear pot, probably because its cheaper and have better channel tracking than a cheap log Its actually a "integrated" passive you suggest, so I think you should look fore 10-20Kohm Monopots could be an option, but may not be very practical, and mostly a choise fore hardcore enthusiasts

15th April 2009, 01:14 AM	#10
jamesjmcgee diyAudio Member Join Date: Jan 2009	Pedja's DS1802 circuit Does anyone have a copy of Pedja's DS1802 circuit? His pages are no more... and I would like to use these samples I was given. Thanks James

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Volume control on DVD player remote. Lose resolution at low volume?	Circlotron	Digital Source	2	10th June 2011 07:20 PM
i need preamp schematics w/o tone control or volume control	hernanstafe	Parts	7	30th January 2008 03:12 AM
I need the infrared remote control schematic for motor controlled volume pot	noyan	Parts	4	24th July 2007 03:05 PM
remote control motorised control for volume pot/knob	CharlesY	Parts	0	25th July 2005 11:12 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read