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Old 21st June 2010, 04:56 PM   #1
diyAudio Member
Join Date: Jun 2010
Default input selector

hello to all

I'm about to bring me up a preamp and I would Bosoz an opinion on the I / O card that I am entraint to establish, I am a bit new to say especially in fitting a relay

I used the example of the scheme but diymania modif in investment inflows and symmetric input pin and there was some question I put to you.

- Choice of relay> 5 or 12V?
- Most schematics I had to consult with the inputs connected to pins 8 and 9 are flying by - the place of + diymania like it is there any significance??
- The pin 6 and 11 are all linked together and go back flying with the masses of the RCA plug and XLP, and in most cases I've seen, they are not there. But I think At least one set of symmetric inputs, as here ... torsch.jpg

I hope ou understand me in my expliqation? In any case I thank you in advance and hope to complete this project with you, among other things, which is part of a supplement for the construction of a aleph5 .

sorry for my english but i used a translator
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Old 21st June 2010, 05:40 PM   #2
paulb is offline paulb  Canada
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Join Date: Jun 2001
Location: Calgary
You need a better translator. I can't understand most of your questions.
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Old 21st June 2010, 06:11 PM   #3
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Some translator is the best?
Otherwise my schema is it well?
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Old 21st June 2010, 06:29 PM   #4
Tiroler is offline Tiroler  Austria
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Location: Austria
I used this schematic and a similar board layout. I have used 5V Reed relay and only switched the hot wire. In this thread you will find some pictures and a link to my web album that shows the whole construction process in detail.
Wish you much success with your project!

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File Type: jpg Input selector boards.jpg (61.6 KB, 347 views)
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Old 21st June 2010, 08:19 PM   #5
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Join Date: Jun 2010
Thank you has you
It is true that this principle is simple and much less voluminous, I go to see has to adapt this systeme and to add him one pat out
One thank you has you, and your site is very enriching
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