DIY Audio Projects Forum

Splitting Phono Signal (before pre-amp)
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Author:  catboyoblue [ 24 Apr 2019, 15:48 ]
Post subject:  Splitting Phono Signal (before pre-amp)

First- this is my first post, though I've been looking over these pages off and on for a while. You all seem like great folks!

So, I might be crazy. I'm a very novice maker (I don't like hip titles, but I can't think of a better one) with only a rudimentary understanding of what I'm attempting to do; however, I'm a pretty good learner.

I've embarked on creating my own turntable. I've had an idea that I've decided I want to do, but it involves sending the Phono signal (the unprocessed signal) for processing (this signal will never be heard by humans). I don't want that signal to go through my nice phono pre-amp and muddy my audio signal which will go to my ears. I know that the SIMPLE solution would be to use some sort of "y" cord after my preamp and feed a signal back that way. However, I would like to design this split to be INTERNAL within the turntable and before the audio output. I don't want to build a phono preamp into the table (though, I admit, that would be one solution) as I would like to be able to use different (higher quality) pre-amps.

I would like to be able to run the signal to both endpoints simultaneously with minimal degradation to the original signal.

Do I need a small amplifier circuit? Would a transformer work? I plan to have a switch in the back that can bypass this 'split' so that I can choose to have 'pure untouched signal' for more critical listening; however, I would like to be able to enjoy my music with this split engaged.

I suppose I'm hoping that I can solve this with a simple (and hopefully not too expensive) solution that won't degrade the signal (much) or add (much) noise.

Any thoughts? Thank you for your time!

Author:  ILoveHiFi [ 29 Apr 2019, 01:29 ]
Post subject:  Re: Splitting Phono Signal (before pre-amp)

All you need to do is wire wires out directly from the photo signal, you can add in your own connectors and drill holes or build a box that does this.
EG if photo is output using RCA you can drill two extra holes and install RCA jacks and wire the wires out in parallel.

(directly hooking up extra wire to allow electical connection directly two to seperate systems)

You need to use coax cables for wiering to prevent noise pickup, any cheap coax cables will do rg-316

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