Power supply pulled from a NeXTstation mono 25 MHz. Tested: it works perfectly.
We can read on it:
NeXT
NeXT Part No.1477
Sony Model No. APS-21
Sony Model No.68-1120-51
Made in Japan
AAY0005836
INPUT AC100-240V
2.4-1.2A
50/60Hz
DC OUTPUT
+5V 7A
+12V 4A
-12V 3A
20$ + shipping