Another possibility would be the 5721B. This panel appears to have been available during that time frame, but I have no way to confirm this (perhaps it was introduced a few years later). If I’m not mistaken, the 5721B was exclusive to the US.
Another possibility would be the 5721B. This panel appears to have been available during that time frame, but I have no way to confirm this (perhaps it was introduced a few years later). If I’m not mistaken, the 5721B was exclusive to the US.