"When I was a kid" (I'm 73) I used to go out on the short piece of sidewalk in front of our country house, hook up my train transformer to a T coil I found in the garage, and with a ground driven into the earth and a wire on the "spark" output, I used to "lightning strike" ants, beetles, and other unhappy mechanisms
Simple buzz box coil testers are useful for testing coil primary and secondary windings good and not arcing internally. OK for 1 cylinder engine but 4 cylinder Model T engines require all 4 coils to be adjusted for equal and consistent firing Time. Coil current was used as an indirect approximation for ignition coil firing time because there was no accurate way to measure fast (0.002 sec) spark events back in the day. Today, digital electronics makes that task easy and very accurate using the Electronically Cranked Coil Tester (ECCT), learn more about that here: www.modeltecct.com
"When I was a kid" (I'm 73) I used to go out on the short piece of sidewalk in front of our country house, hook up my train transformer to a T coil I found in the garage, and with a ground driven into the earth and a wire on the "spark" output, I used to "lightning strike" ants, beetles, and other unhappy mechanisms
Simple buzz box coil testers are useful for testing coil primary and secondary windings good and not arcing internally. OK for 1 cylinder engine but 4 cylinder Model T engines require all 4 coils to be adjusted for equal and consistent firing Time. Coil current was used as an indirect approximation for ignition coil firing time because there was no accurate way to measure fast (0.002 sec) spark events back in the day. Today, digital electronics makes that task easy and very accurate using the Electronically Cranked Coil Tester (ECCT), learn more about that here: www.modeltecct.com
I have a 6V system Shouldn't I test at 6 Volts (or lower since the battery will be low due to starter current) and what current is ideal for that?