If you on this forum then you are probably at least somewhat into vintage tube gear. Check out the link below for vintage Dynaco, Scott, Fisher, McIntosh, Harmon Kardon, Acoustic Research etc. schematics, brochures and user manuals.
Vintage Vacuum Audio's schematics, brochures and manuals
If you search around on their web site, you will also find some audio magazines from years past ...
Bob
Vintage Vacuum Audio's schematics, brochures and manuals
If you search around on their web site, you will also find some audio magazines from years past ...
Bob