Hi Martin,

I just got 3 U47's in my shop that a client found recently.
They are all original VF14M units, but no power supplies.
Serial numbers are :
U47a #5207 Neumann Badge
U47a #5209 Neumann Badge
U47 #2688 Telefunken Badge
I assume that the Telefunken badge on #2688 was done
by Gotham Audio. Stephen Temmer did that a lot in the
1960's to increase resale value, even though Telefunken
never actually made any of their own microphones !

Would all 3 be the standard 105 VDC, 40 mA power supply ?
I'm looking for a schematic for the NG Power supply so I can
build new power supplies for these mic's.
Fortunately I have the 3 pieces of the original 6 pin Tuchel
female connectors for the mic cables, I'll probably use a 5 pin
XLR type connector for the power supply end of the mic cables.

Thanks for all your help in the past,

Charlie Brewer
Tech Services
Nashville, TN
charliebrewer@yahoo.com