From the files of a Moog 55 Kevin restored back in 2011:
Images
In going through my old computer, I found a series of videos of Kevin working on an Arp 2600. Most likely late 2012, from the file names.

Living room, December 2006

“OMG VCO’S were in foil!”
This is from a Moog55, late 2010/early 2011.
More will be featured from this particular unit, as it’s got quite a story!
Video dated 10/9/11
Found this in Kevin’s “work” folder:
Open High-Hat decay extension

TR 808 OH decay mod
Minimoog, 2012

Mini problem found…
…and it’s verified as being worked on by Kevin due to his feet being in the picture. 😉
All the black resistors on the VCO board are either 1% or .1% tolerance. FYI, there are 6 sets of 3 matched resistors that are vital to the synth staying in tune and tracking well. Kevin started replacing these during the last few years he was working on Minis.