i do have a partial list of things i'm going to try to get working this year.
1 tascam 22-2 1/4" half-track reel to reel tape deck
1 sony tc-350 1/4" quarter-track deck
1 advent 100 dolby b unit
1 dbx 224x
1 dbx 150
the last three are noise reduction units, used with magnetic tape systems to increase S/N ratios and extend dynamic range- their benefits are widely debated, but I want to try to calibrate them to at least work correctly.
here's what the dbx systems might look like as a dsp plugin
http://www.bobweitz.com/dbx_webpage/dbx.html