McIntosh C712 Preamplifier - Schematic wanted

[tiefbassuebertr]

Who can post a schematic diagram of this preamp equipped with NE5532 ?

I think it is very close to the preamp section of this integrated amp:
http://www.diyaudio.com/forums/soli...osh-ma-6800-ma6800-power-stage-schematic.html

Here some comments from user's:
McIntosh C710 and C712 pre amps from the 90s- Experience? - AudioKarma.org Home Audio Stereo Discussion Forums