Speaking of the I/O cable, here's the Studio II's RF switch.

The Studio II has no power button on the unit; instead, it employs a unique method of powering on. When you select "Console Cord" on the RF switch, power goes into the Studio II and data is fed to the TV set. When you select the "Antenna" on the RF switch, the unit powers off and your antenna signal is routed to the television set.

And inside the RF switch? Some capacitors and inductors that were undoubtedly hand-assembled.