From the files of a Moog 55 Kevin restored back in 2011:
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
…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.
Happy VCO Day!