A while ago I took on a repair and restoration project of a Studer B67 Mk1 reel to reel analog tape machine. I purchased the machine used and broken and then purchased a "Full Monty" repair kit from Nagravox in Australia.
I'm making progress, but it's not done yet. It's an exciting, but tedious process. The exciting part is that I'm working on this device that is considered by some to be the pinnacle of audio recording fidelity (when it's working properly). Today it's considered obsolete by most because of the convenience of digital recordings, but many audiophiles and purists say that analog still sounds the best. Plus it's just so darn COOL! It's like working on a (potentially) great sounding machine that has a Rube Goldberg / steam-punk aesthetic and feel that modern digital gear doesn't have (for better or for worse). The tedious part is combing through long technical documents (which mercifully include pictures), taking lots of measurements, and replacing a LOT of dried up capacitors and other parts.
Dave Burt is a career audio engineer and is currently working as a freelance Production Sound Mixer.