Most popular tach in the 70's and other stuff

STP, Holley, Hurst, Hookers, and Thrush are the ones I remember the most. I had a Craig Powerplay with an FM receiver that I bought when they first came out. Pricey!! If I remember right, it was about $125. (More than a paycheck) Everything wasn't cheap back then. Edgar Winters, Frankenstein and David Essex, Rock On sounded really good on it.