Hello all, I have been working on a secret project for awhile now, which upon finnishing I was going to reveal here! Essentially I had it functioning for the majority of the build and completely working during testing phases, but sadly moments after finishing the project(fully assembled) a major function decided to fail, to much of my displeasure.

Now for some details:

The project was using a SONY WM-501 main board, which was from a mechanically non-functioning WM-504....which was one of the reasons it was chosen for the project.

The exact portion of the project that failed was the pre-amp, every other function works... So righ now there is no sound...Errr.

Any wild thoughts to the cause of the pre-amp failure?

Now I'm desperately asking for ANY HELP...to finnish (fix) and reveal this masterpiece project! Does anyone know if it is possible for me to fix the Pre-amp on the board, any options? IF NOT: I need to find a working SONY WM-501 main board,... it has to be the WM-501...because the project has been completely retro-fitted to use and function with the WM-501 main board.

Now I understand the WM-501 board is not an easy one to find, and was only used in a few models, can anyone confirm which ones, this could help? I know it was used in the WM-503, WM-504 & of course the WM-501.

Any help would be greatly appriciated, I'm desperate to finnish and showcase this project.

Hi, although I cannot help, just a note of support! Good luck and stick with it. Actually, I always wondered what it would be like to design and make my own walkman made to a very high spec with super amazing op-amps etc that really make the sound shine. And of course with custom case work hewn from solid aluminium...nice.

I want to say something, even if many do not want to believe, to get a walkman with the features you listed and more is only one way, I did take a wm-dd9 and edit it.

I also have a nice dd9

Walkgirl Hello, I know that you have a Hitachi CP-88r and an Aiwa hs-px101. I also wish for my collection. Can you tell me where can I find them? On ebay there are not ever.

Hello Dottor

The Hitachi they seem to be super rare!, but now and then they
come on ebay, maybe once avery year!

The hs-px101 is more to find on ebay.de!!

every month or so!

Thanks walkgirl. What is the right price for the CP-88r and the hs-px101?

Hello

The hitchi cp-88r does go inbetween $125 upto
$200 or so, depending on the state it is in!

the aiwa will go much more cheap on ebay.de!!

Just keep looking, sooner or later you will find one or so!

Thanks walkgirl. Can I ask how long collections walkman? I think I understand that you're a girl. It makes me very happy since I have only known male lovers walkman. Very good.