Ugh! The photos show the output binding posts were replaced with gold plated versions. That's OK, but the chassis had to be drilled to accommodate them. The studs on the new posts are larger than the standoffs (4-40) supplied for mounting the board to the OEM Switchcraft binding posts. An option would be to drill and tap one end of the standoffs to the same size as the new binding post studs.
Post number 13 shows the relay board and hardware. On the left side is the AC power triac board designed specifically for the 700's. The early 700B's used an undersized Arrow Hart power switch. They were failure prone and today are nearly impossible to find. The triac board becomes the main power switch. The existing power switch controls the triac. The board mounts against the chassis and uses the existing screw that supports the driver board.
