AMPEX 440 1/2 Inch 4 Track Vintage – Sonic Circus
Ampex electronics for the best possible sound
Ampex AG-440C Story
Ampex AG-440C Story
Ampex AG-440 mono reel tape recorder• the Museum of Magnetic Sound
Ampex AG-440C 1/2 4-Track Reel-to-Reel Tape Deck For Repair 1970s
Ampex 440 videos
NOS Ampex AG-440 1/4 inch 2-track Erase Head tape machine
List of end game 15 IPS 2-track 1/4 decks (please read rules