Classic Hifi Care

Here is a nifty all-in-one calculator I found some time
ago from an ARF poster.

I remember that place, they called on us when I worked at the Gamble Store forever ago. Muskegon is the city we went to as a kid if we wanted to go to the "BIG CITY" to shop. The really "BIG CITY" would be Grand Rapids, and that trip was only on very special occasions.

Bill

Nice I will copy that and make a poster for the bench , I am always mixing up the formulas