Sony TC-630D - 3 head deck

The TC-630D was a deck-only version of the TC 630. It was a
quarter-track stereo, three speed recorder with three heads and a 7″ reel capacity.
Previously, Sony had often been criticised for their
apparent desire to “conceal” the various recording controls.
Tiny level controls, awkwardly placed, and miniature level meters almost
gave the impression that Sony considered recording a secondary function
and were more interested in the playback aspect of their tape recorders.
On the TC-630D however, large professional type VU meters were provided
with calibrated slide-type record level faders positioned in between the
meters
.The letter “D” was added to the model number
to signify ‘deck only’ and therefore the TC-630D was identical to the TC-630.