1970 Marshall JMP 50w - RESTORATION PART 1

A 1986 50w Bass spec JMP has come in. The owner purchased it and sent it straight to me for a ‘service’. We are going to restore this timepiece. Part 1 is a deep dive on the existing amp as received and diagnoses of the issues with it. headfirst.amplification@gmail.com https://headfirstamplification.com   / headfirst.amplification     / 225949122469679     / headfirst_amplification   0:00 Intro 2:46 At The Bench 35:25 Schematic Review 41:44 Tones