supply for volume control

Corpius · 25th March 2012, 05:58 PM

I bought a volume control kit from ebay. When looking at the specs one should use a 9-2 V~, 3A power supply. But is 3A not a bit overrated? Should 1200 mA be enough?

AndrewT · 25th March 2012, 06:04 PM

1200mA will probably be OK.
It only passes high current when the pot is adjusting and when relay/s are pulled in.

BTW
the pot spends a high proportion of time adjusting.

sreten · 25th March 2012, 06:16 PM

Hi,

http://www.alps.com/WebObjects/catal...6/RMP_RK16.PDF

According to the above I'd take the blurb on ebay
as a misprint and assume it is 0.3A / 300mA.

rgds, sreten.

Corpius · 26th March 2012, 03:26 PM

Thanks. I Also contacted the seller. According to him 1200 mA will do just fine.

25th March 2012, 05:58 PM	#1
Corpius diyAudio Member Join Date: Jan 2011	supply for volume control I bought a volume control kit from ebay. When looking at the specs one should use a 9-2 V~, 3A power supply. But is 3A not a bit overrated? Should 1200 mA be enough?

25th March 2012, 06:16 PM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, http://www.alps.com/WebObjects/catal...6/RMP_RK16.PDF According to the above I'd take the blurb on ebay as a misprint and assume it is 0.3A / 300mA. rgds, sreten. __________________ There is nothing so practical as a really good theory - Ludwig Boltzmann When your only tool is a hammer, every problem looks like a nail - Abraham Maslow

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25th March 2012, 06:04 PM	#2
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	1200mA will probably be OK. It only passes high current when the pot is adjusting and when relay/s are pulled in. BTW the pot spends a high proportion of time adjusting.

26th March 2012, 03:26 PM	#4
Corpius diyAudio Member Join Date: Jan 2011	Thanks. I Also contacted the seller. According to him 1200 mA will do just fine.