U87 schematics

[marcus4audio]

Hey guys. I have the vintage U87 (version with wn820 inside and orange elco) and wonder did somebody have the  corresponding schematics? All U87 schem's floating on the net are not "wn820" versions
Also, what is the "wn820"? Current source diode?

 

[ln76d]

It's the worst version ever, i'll sent you my adress on pm, and you can send me this mike for utilization  ;D
Post some photos (inside/outside) of that mike and we will find some solution
Right now wn820 is something mysterious
Cheers

 

[marcus4audio]

LOL good one well it's possible to use u87i sch with (33v zener ) but this one  looks slightly different. No prob, I will post the inside pics soon

 

[panman]

http://www.neumann.com/forums/index.php?site=neumann&lang=en
Then click:
Manufacture Date
Inquiries
(only before 1990)
Send them the serial number and ask for the schematics. They will normally post very quickly.

 

[marcus4audio]

Thanks guys