My MAIN reel to reel deck is an: Akai PRO-1000, for playback, using its 1/4 track head. Other working and up to spec units include: a GX-625, GX-600d, GX-255, two GX-266D MKII's; an Akai 1700, and a 1710; a Sansui SD-7000; a Kenwood KW-8077; and two Uher 4400 Report Monitors.
Other semi-working (probably in need of some or a lot of work) reel decks include an Akai GX-650, GX-400D, GX-400D-ss, GX-267d; a Kenwood KW-8077; a Tandberg 9200xd, 9100x, 9000x; and a second Sansui SD-7000.
Units in need of repair include: A Pioneer RT-909, RT-707; Akai GX-635d, GX-266d MKII, another GX-266d MKII, two GX-77's, a 1700, M-7; Kenwood TT-50, Tandberg 9000x, 3300x; a Sony TC-765, Two Sony TC-558's, TC-366, and a TC-521.
As I have two of those Kenwood KW-8077's, one was working well, while the other one had a tendency to stop in the middle of playing, for no good reason, refusing to continue. I think of my three Kenwoods, one also has a bad switch in the electronics box.
Overall, these Kenwoods are very neat machines with weird custom relays inside. In all likelihood, these Kenwood sets need some caps and transistors replaced 40+ years later, as they use a whole bunch of the same transistors that always are seen failing in the later 1970's, and early 1980's Akai's.
The Kenwood TT-50 looks almost the same as the KW-8077, and it uses similar, almost identical electronics to the KW-8077, but the TT-50 has a single motor transport which uses lots of belts and wheelies to try to do what the KW-8077 does with 3 motors. I doubt you could find a TT-50 that is working to original specs forty+ years later.
I only know of one other Akai PRO-1000 owner, who also had more than thirty other reel to reel decks, I wonder if he still has them? You out there Dave?
-Steven
The RTR I have is a Kenwood KW-8077.I bought it in 1971 at a military base Audio Club store.
Some of it's better features include a 6 head system for bi-directional recording and playback...auto-reverse...a 3 motor tape transport system...a 5 step graphic equalizer control and micro-touch control buttons.
All functions still perform with no negative issues what-so-ever.
The feed-back I'm getting from this site is giving me the feeling that there isn't a lot of Kenwood RTR's out there...how 'bout it,yes or no?