The capacitor's main function is to supply the electromagnetic coils with a charge after the front spring breaks contact opening the circut. with out the cap. the machine requires more voltage to run at an equal frequency. the capacitance will determine how long the coils will remain "magnetic". the machine operates as such: in a relaxed position without dc voltage applied, the contact screw touches the front spring. the front spring "gives" as the back spring is pushing the armature bar/front spring assembly upward. when a given voltage is applied, the capacitor charges as the coils magnetise and START to pull the arm. bar downward. the front spring stays in contact with the contact screw for a fraction of the full movement, keeping the circut closed and the coils on. when the spring and screw break contact is when basic electronics theory says that the capacitor will discharge.
----------so the capacitor "helps" to pull the arm bar down with less voltage.
and the amount of capacitance will determine the duration of the "helping voltage".
i have not attended any major electronics classes other than the basic ones in high school and i have been tattooing for a while. i would guess that about 80 percent of tattooists have no idea how thier machines operate. i just happen to be a very inquisitive person by nature and like playing around with electronic components.
- i hope this will be read by someone and help
vick
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