model 15

I was fortunate enough to find a consecutive serial number pair of Norman Laboratories Model 14's (with NL stands) and a paired Model 15 sub-woofer at an estate sale recently. While the 14's need re-foaming, the finishes on all the speakers and stands are great considering the 45 - 50 years of...

Hi, I've got a Model 15 in the shop but the assemblies don't match the Model 15 manual I found on line at hifiengine. I can follow what's going on by tracking traces, but there are parts and circuits in the manual that are not in this unit, and there are quite a few parts with different values...

WARNING: INITIAL POST LONGER THAN INTENDED Long time listener, first time caller...I've looked through the numerous other model 15 posts and tried to gather as much info to spare the overlap. I'll try and update as I move along. I'm not the handiest person, so forgive me in advance for any...

Group, First off let me express my heartfelt thanks to all the guru's, hobbiests and techs on this forum. I have learned so much and continue to learn each day. I recently got a Marantz Model 15 on the bench and it is in dire need of the driver and output transistors, being as how the drivers...