More open design for this SL-10 version and real bestseller of the series : the SL-10 sold like hotcakes, the 7 sold like hothothotcakes.
The SL-7 is an SL-10 sans built-in MC preamplifier, with less aluminium and more plexiglass so one can actually see the LP spinning - which is part of the charm after all.
Not much else to say except there are enough of them around so they remain very cheap today, making the SL-7 even more of a bargain.
The only problem is finding good quality T4P cartridges which, alas, nowadays are all of the MM kind - no DL-160, XL-44L or MC-20 here.
Although only for export, the SL-7 was also available in black - very rare.
Refer to the SL-10 pages for the specifications and description - it's the same turntable.