Technique Charts
For any older standard frquency generators, the Tingle techniques have always seemed to work well if the generator is calibrated within specs

For Hi-freq generators, the HCMI techniques seem to work well on most
Clicking on an underlined link opens the file in pdf. You can also do a right mouse click and "save target as"
For HCMI 400 Speed AutoTech Techniques, Radiographic Positioning Guide and Vet Techniques, CLICK HERE