I see old Ryobi radial arm saws with model numbers RA200 / 200A (?A = Australia?) in various versions for sale from time to time.

Presumably these are the same model with potential for major injuries mentioned in US product safety recall in 2006.

Hazard: Cracking of the plastic motor housing can cause the blade assembly to fall during operation, posing a risk of laceration to the operator or bystanders. The detachment may occur unexpectedly and without warning.
Incidents/Injuries: RMP has received five reports of detached blade assemblies, including four reports of lacerated fingers to the saw operators.
Description and Models: The recall involves all RA200 and RA202 radial arm saws. These are bench top models with 8 ?-inch blades. Each unit has a data plate immediately behind the operator grip for the saw, which says "RYOBI 8 1/4" Radial Arm Saw" and either "RA200" or "RA202."

Sold at: Home and hardware stores nationwide from 1986 through 1997 for between $200 and $300, and higher in some instances.
Ryobi Radial Arm Saws Recalled for Blade Detachment Hazard | CPSC.gov