Akai 4000 Reel to Reel repair. DEoxIT to the rescue!
Using 2 Akai GX 4000D to make one work
Akai 4000DS Review
Akai 4000DS MKii
Testing just refurbished Vintage AKAI GX-270D 3 Head 3 Motor Reel to Reel Tape Deck Recorderer
AKAI 4000 DS reel-to-reel tape recorder SPEED change
Akai 4000DS II: Part1: Open Reel-to-Reel Tape Recorder
Cassette Players, Vintage Sound & Vision, Sound & Vision - PicClick UK
Akai GX-4000D Main board capacitor and Transistor replacement.
Akai 4000D full strip and re build Part 2
26) Electronic Repair Time! ASHLY 3102 Stereo Equalizer
How to record on the Akai 4000DS reel-to-reel