Rebuilding ADK A51
« on: May 21, 2020, 05:06:44 AM »
Hi! I built a U87 clone into the body of my old ADK A51 microphone a few years ago. I saved the capsule, transformer and pcbs from the ADK mic and would now like rebuild it into another chassis. Problem is that  I have forgotten how to wire the transformer and xlr connector. Can someone please help to figure it out?

I think this microphone is pretty much the same as several low budget condensor mics also branded MXL, Generis, Tbone, TSM aso..

I've attached two pics of the parts.

Thanks!


Re: Rebuilding ADK A51
« Reply #1 on: May 21, 2020, 05:07:18 AM »
2nd pic

Re: Rebuilding ADK A51
« Reply #2 on: May 21, 2020, 02:52:00 PM »
might this be right?

Khron

Re: Rebuilding ADK A51
« Reply #3 on: May 21, 2020, 03:13:04 PM »
Well, at least regarding the transformer, you can ohm out the two windings; the higher-resistance winding goes to the circuit, and the lower-resistance one goes to the output.

You might need to reverse the output (or XLR) wires, depending how the phase goes.

PS: That's a positively tiny photo - last time i checked, this was the year 2020  ???
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans

analogguru

Re: Rebuilding ADK A51
« Reply #4 on: May 21, 2020, 03:40:32 PM »
The 2nd pic is not visible - at least to me.

Re: Rebuilding ADK A51
« Reply #5 on: May 21, 2020, 04:56:47 PM »
The 2nd pic is not visible - at least to me.
sorry, new try

analogguru

Re: Rebuilding ADK A51
« Reply #6 on: May 21, 2020, 08:52:10 PM »
enjoy

Re: Rebuilding ADK A51
« Reply #7 on: May 23, 2020, 04:22:38 AM »


 

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