[Benson]

I have built more than a few Heathkit meters, timing lights, Capacitor testers and other devices.


One was the ID-29 and CM-1073.


I have used these meters and tools since 1970 and in some cases years before 1970.


Even today I use the CM-1073 Dwell/Tach on Model As to set carburetor idle mixture (must be under 500 RPM in order to adjust idle mixture so there are no stalls during stops).


Just hook the leads across the coil leads with correct polarity .


Works on Model As (6 and 12 volts pos or neg ground) and VW Type 1 , 2, 3 and 4 engines. Porsche 912, 914, 911, 911T and 911S - 4 and 6 cylinders also.