Phono Transfer System Construction Information

Construction information for DIY projects, including the MS Mid Side Matrix, Elliptic Equalizer, Mastering Console, Phono Transfer System, Insert Switcher and the Dual Class-A Amplifier. You can post your baby pictures here.
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mediatechnology
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Re: Phono Transfer System Construction Information

Post by mediatechnology » Wed Nov 20, 2019 6:50 pm

Maybe you should consider using J2 and modifying the range from +3, 0 -3 to something else. (+4, 0 -4?)

It should be relatively click-less that way.
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billshurv
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Re: Phono Transfer System Construction Information

Post by billshurv » Thu Nov 21, 2019 5:43 pm

That was plan B when I realised plan A was stupid (switching gain on MC board) and If you switch in a parallel resistance that gives you what you need. I'm just having a risk averse moment as, come next year I will need a visa to go and fix it! He is known to change cartridges 2 or 3 times an evening.

I don;t like throwing away gain but sometime you have to be pragmatic.

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mediatechnology
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Re: Phono Transfer System Construction Information

Post by mediatechnology » Thu Nov 21, 2019 5:46 pm

I'm just having a risk averse moment as, come next year I will need a visa to go and fix it!
Your client is off the island and on the continent?
https://ka-electronics.com

"5G Launches In Wuhan Weeks Before Coronavirus Outbreak" https://banned.video/watch?id=5e335e772f3c020019a423f8
"Biggest Medical Scandal In History Breaking! UN Comes Clean, Admits Vaccine Death/Damage Coverup" https://banned.video/watch?id=5e1b9ed434b802001ed99b14
Mirror/Download: https://proaudiodesignforum.com/content ... overup.mp4
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billshurv
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Re: Phono Transfer System Construction Information

Post by billshurv » Thu Nov 21, 2019 6:21 pm

Not so much a client as a friend. I figured having someone to encourage me would accelerate the completion of my set as well*. He's paying for the parts and labour will be bartered for some spare cartridges he has.

*At least that was the theory. Life has a way of getting in the way :)

billshurv
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Re: Phono Transfer System Construction Information

Post by billshurv » Sun Dec 15, 2019 6:24 pm

No Progress in last few weeks due to other comittments, but my PCM4222 EVM has arrived so I can integrate that. As well as giving me galvanic isolation it will allow me to offend all those sensitive souls who think digitising a vinyl signal will rob it of some magic. Happy days :)

billshurv
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Re: Phono Transfer System Construction Information

Post by billshurv » Thu Dec 26, 2019 7:06 pm

Wife away with kids for a couple of days so time to crack on. And first dumb question. How did you intend the shield drive to be setup for remote switching of gain? I'll just be switching between A&B on the first build.

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