*ADVANCED TECHNIQUE
Break the top off the amp very carefully so there is a clean and even break.
Then unscrew the pin from the needed and stick needle down on top of the amp without the pin.
Then turn upside down and pull the plunger back fillinf the needle.
Screw pin back on and the pin never touches anything before you stick yourself.
Break the top off the amp very carefully so there is a clean and even break.
Then unscrew the pin from the needed and stick needle down on top of the amp without the pin.
Then turn upside down and pull the plunger back fillinf the needle.
Screw pin back on and the pin never touches anything before you stick yourself.