Vintage Sony reel-to-reel tape deck repair. As usual with equipment like this, the mechanism needed hardened grease cleaned out followed by lubrication.

Sony Reel to Reel - Summary

Concord 994

Sony Reel to Reel - Summary

The journeys of a vintage audio geek (Netherlands)

Reel To Reel Tape Recorders / Decks… Ready to GO! RESTORED / REFURBISHED / FULLY SERVICED & Fully Tested with a 90 day Warranty!

Ultra tape recorder ffw rew problems - UK Vintage Radio Repair and Restoration Discussion Forum

Sony TC-377 Stereo Open Reel Tape Recorder Manual

Reviving a Norelco Philips Cassette Recorder From the 1960's : 11 Steps (with Pictures) - Instructables

Essex Radio and Television Service

1971 Sony TC-540 Reel-to-Reel Tape Recorder Overhaul

Vintage Sony Reel to Reel Tape recorder TC200 Player With Attached Speakers

The journeys of a vintage audio geek (Netherlands)