Here's a video highlighting the recent repair and restoration of a Marantz MA 650 Amplifier. I picked this up nearly a year ago and started some repairs, got frustrated and set it aside. I really wanted to breathe some life back into this thing so I pulled it out and dove right in. My hats off to you techs that do this for a living and can focus in on problem areas right away. I lack the tools and the training but I somehow manage. Hope this is video helps you out. Thanks for watching and thanks to Jordan Beckett for permission to use his original music.