I am looking for a decent reel-to-reel tape deck for playback only (I would like to digitize my archive of a few reels). I would need a unit capable of 7.5 and 15 ips; both 1/2 track and 1/4 track. In the past I had worked with the Otari MX 50-50 that had two playback heads one for 1/2 track and the other 1/4 track. Are there others of similar design? If so, does anyone know of a good used one that doesn't cost an arm and a leg? (Ampex, ReVox, Otari, Sony, etc.)