Next "box of chocolates". Just the way I like them, dusty all over and looking unused since the death of vinyl was announced.
Parts unit is #3647, this new to me one is #4195 and appears untouched.
It has a factory appearing mod over the NE5554N Adjustable Dual Tracking Voltage Regulator and a additional 1000 uF Nippon Chemicon cap on the foil side.
The earlier parts unit doesn't have this.
Looks like this will be my unit to recap and upgrade. Very nice.