Quick Volume pot question

athos56 · 17th July 2009, 09:18 PM

So if I use a 100k pot for the volume on my stereo buffer (both halves of one tube), would I use a 250k pot on a pair of buffers? (for pair stereo channels)

EC8010 · 18th July 2009, 06:15 AM

No. 50k.

athos56 · 18th July 2009, 07:31 AM

ahhh, thanks.

Gordy · 18th July 2009, 01:54 PM

If you use 100K per channel now, then use 100K per channel when you add more channels. Or maybe I missed the point.

boywonder · 18th July 2009, 02:03 PM

I'm not sure that I understand the question either........If you are using 100K for one channel, wouldn't you use 100K x 2 (stereo pot) for two channels?

athos56 · 18th July 2009, 03:39 PM

4 channels, 2 stereo pairs, 1 stereo pot, 2 channels per stack. So a single volume control for each channel, I couldn't find a 100k Alpha quad pot.

Gordy · 18th July 2009, 10:15 PM

4 gang pots difficult to source sometimes...

Attenuators available, but limited in steps...
www.dact.com/html/attenuators.html

This company is expensive, but does 46 volume steps, and custom up to 12 channels...
http://www.marchandelec.com/att.html

It seems as if this company has a 4 channel Alps RK-47 pot, but it is only 10K Ohms per channel...
http://electronics.dantimax.dk/Accessories/index.html

Or 4 channel (10K Ohm) TDK pots...
http://www.thel-audioworld.de/bauteile/regler/Potis.htm

nic6paul · 18th July 2009, 10:21 PM

How about the goldpoint quad?

$249
http://www.goldpt.com/prices.html

athos56 · 18th July 2009, 10:59 PM

but I'm talking about an Alpha Co. pot that would be ~$5 bucks. I never really liked stepped attenuators. I know Alpha makes a quad pot, its just I can't find someone who sells it. So if I can't use a 100k quad (dual stereo) pot then I have to run the right channels off of one stack and the left channels off of the other stack. I figured that I would have to use a different value pot.

17th July 2009, 09:18 PM	#1
athos56 diyAudio Member Join Date: May 2006 Location: Yakima, Washington	Quick Volume pot question So if I use a 100k pot for the volume on my stereo buffer (both halves of one tube), would I use a 250k pot on a pair of buffers? (for pair stereo channels)

18th July 2009, 06:15 AM	#2
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	No. 50k. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

18th July 2009, 10:59 PM	#9
athos56 diyAudio Member Join Date: May 2006 Location: Yakima, Washington	All really nice but I'm talking about an Alpha Co. pot that would be ~$5 bucks. I never really liked stepped attenuators. I know Alpha makes a quad pot, its just I can't find someone who sells it. So if I can't use a 100k quad (dual stereo) pot then I have to run the right channels off of one stack and the left channels off of the other stack. I figured that I would have to use a different value pot.

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18th July 2009, 07:31 AM	#3
athos56 diyAudio Member Join Date: May 2006 Location: Yakima, Washington	ahhh, thanks.

18th July 2009, 01:54 PM	#4
Gordy diyAudio Member Join Date: Nov 2006	If you use 100K per channel now, then use 100K per channel when you add more channels. Or maybe I missed the point.

18th July 2009, 02:03 PM	#5
boywonder diyAudio Member Join Date: Jan 2008 Location: So.Cal.	I'm not sure that I understand the question either........If you are using 100K for one channel, wouldn't you use 100K x 2 (stereo pot) for two channels?

18th July 2009, 03:39 PM	#6
athos56 diyAudio Member Join Date: May 2006 Location: Yakima, Washington	4 channels, 2 stereo pairs, 1 stereo pot, 2 channels per stack. So a single volume control for each channel, I couldn't find a 100k Alpha quad pot.

18th July 2009, 10:15 PM	#7
Gordy diyAudio Member Join Date: Nov 2006	4 gang pots difficult to source sometimes... Attenuators available, but limited in steps... www.dact.com/html/attenuators.html This company is expensive, but does 46 volume steps, and custom up to 12 channels... http://www.marchandelec.com/att.html It seems as if this company has a 4 channel Alps RK-47 pot, but it is only 10K Ohms per channel... http://electronics.dantimax.dk/Accessories/index.html Or 4 channel (10K Ohm) TDK pots... http://www.thel-audioworld.de/bauteile/regler/Potis.htm

18th July 2009, 10:21 PM	#8
nic6paul diyAudio Member Join Date: Jan 2007 Location: Minnesota	How about the goldpoint quad? $249 http://www.goldpt.com/prices.html

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