Completed my usual startup procedure for amps that haven't been powered for a long period, including reforming the main electrolytics. I checked the onboard electrolytics for signs of physical leaks and couldn't see anything. Bias circuit was providing stable bias voltage. Once I was satisfied that the caps were ok, and that there were no shorts or anything major wrong, I brought up the voltage slowly on my variac with no tubes installed. All seemed good, so I installed a good known set of tubes, reran my tests, biased the amp and plugged in a guitar, and instantly she sprang back to life. 8)
Over the weekend, I tackled some of the headbox cosmetic issues. In the first picture I posted, you will see that the headbox piping around the front panel had at some stage been "upgraded" to the white piping that the newer Marshalls from the late 70's and forward had begun to come out with. What is not obvious from the photo, is that the front panel had also been recovered with vinyl, instead of the original tolex. Although this vinyl quite closely resembled the tolex of the rest of the box, it was still noticeable to me, and so off came the vinyl, careful to preserve the original gold "string" that goes across the panel underneath the logo. I then recovered the front panel with original Marshall Levant tolex, reinstalled the gold string, and replaced the white piping with the proper gold mylar piping, and fitted an original Marshall logo. Here she is in top of a angled cab also from '68 that I had previously restored:

Over the weekend, I tackled some of the headbox cosmetic issues. In the first picture I posted, you will see that the headbox piping around the front panel had at some stage been "upgraded" to the white piping that the newer Marshalls from the late 70's and forward had begun to come out with. What is not obvious from the photo, is that the front panel had also been recovered with vinyl, instead of the original tolex. Although this vinyl quite closely resembled the tolex of the rest of the box, it was still noticeable to me, and so off came the vinyl, careful to preserve the original gold "string" that goes across the panel underneath the logo. I then recovered the front panel with original Marshall Levant tolex, reinstalled the gold string, and replaced the white piping with the proper gold mylar piping, and fitted an original Marshall logo. Here she is in top of a angled cab also from '68 that I had previously restored:
