[Milsurplus] RA-42 Rectifier

[C Whitaker]

de WB2CPN

First, I really need an RA-42 rectifier that powers the
BC-639.   Anyone have one available?
Then, does anyone have the manual for the BC-639
or the RA-42 so's I can make up something? 
Help!

Thanks all,  Clete in South Central Pennsylvania.