Aleph P1.7 volume control

supernet · 23rd September 2004, 12:05 PM

I have almost finished my Aleph P 1.7, but I am not shure about volume control. I was thinking about 4 pole 12 positon rotary switch from Elma, but 12 positions is this enough?

Somewhere on this forum I have read once that it is possible to use just a 2 pole attenuators for stereo balanced output: between + and - phase?

This would be a nice solution because it is not easy to find 4 pole 24 postions switch with a fair price, but which solution would serve best?

What do you think?

fcel · 23rd September 2004, 12:42 PM

This may give you some ideas .... Aleph P Finished (Well at least 99% done)

till · 23rd September 2004, 02:29 PM

what about using some relays and a microcontroller?

supernet · 23rd September 2004, 06:30 PM

This could be the best solution, but I have no experience with PICs. And there is still some PCB artwork to do.

23rd September 2004, 12:05 PM	#1
supernet diyAudio Member Join Date: Dec 2001 Location: Europe	Aleph P1.7 volume control I have almost finished my Aleph P 1.7, but I am not shure about volume control. I was thinking about 4 pole 12 positon rotary switch from Elma, but 12 positions is this enough? Somewhere on this forum I have read once that it is possible to use just a 2 pole attenuators for stereo balanced output: between + and - phase? This would be a nice solution because it is not easy to find 4 pole 24 postions switch with a fair price, but which solution would serve best? What do you think?

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23rd September 2004, 12:42 PM	#2
fcel diyAudio Member Join Date: Sep 2001 Location: LA County	This may give you some ideas .... Aleph P Finished (Well at least 99% done)

23rd September 2004, 02:29 PM	#3
till Banned Join Date: Apr 2002 Location: Germany, Clausthal	what about using some relays and a microcontroller?

23rd September 2004, 06:30 PM	#4
supernet diyAudio Member Join Date: Dec 2001 Location: Europe	This could be the best solution, but I have no experience with PICs. And there is still some PCB artwork to do.