Be careful here there seems to be two types of rear section one plain and one with three plastic strain relief? bits
They are widely used in the Tascam Cassette units and Portastudios,
Be VERY!!!!! careful you dont loose the top washer, I put a bit of tape on it and then lift off with a thin knife this is not included with the table but I have a few spare listed elsewhere, I have lost count of the times people wrote to me and said " yes you was right I lost mine"
S538 our plain one
S1132 back has like a triangle I guess for strain relief
Seen In( but not limited to)
Tascam 244 246 portastudio