Re: two zappers at once

In electricity/electronic, anything is possible…
But we need more information :
What kind of zappers where you using?
Where they connected on a wall plug?
Are they powered by 9V battery only?
Did they where directly connected one to each other on any way?
What kind of output impedance they have?
Are they using “stabilized wave circuits” of any kind?
When you say one is broke, what makes you think/say so?