Post by heem6 on Apr 18, 2009 13:27:41 GMT -5
Here's instructions on how to carry out the infamous EMG 18-volt modification. Seems like a lot of people put EMG bridge pickups in their HM's back in the day, so I thought this might be useful information.
Many of the information I've come across on this tell you to desolder the joint on the input jack - the truth is you don't need a soldering iron, you're just running two 9 volt batteries in a series! Here's a simple way to do it without a soldering iron.
What you really need:
9 Volt battery clip
9 Volt battery
Wire strippers
Electrical tape (or wire nuts)
What to do:
Make sure you have enough room in your cavity for two batteries!
The black wire circled is what connects to your input jack and is the drain
1. Disconnect 9 volt battery
2. Cut the black wire that's circled
3. Strip both ends of the wire you just cut (and the ends of your new 9 volt battery clip if they aren't already)
4. Connect the black wire of your new clip to the black wire that's still attached to your input jack
5. Connect the red wire of your new clip to the black wire of your old clip
6. Insulate with electrical tape
7. Attach two new 9 volt batteries, put the cover back on and enjoy
For those who like pictures:
What I would also like to have is how to put a switch that selects between 9 and 18 volts. This would also be a good indicator in hearing what the differences are.
I'll post up real pics and my findings soon.
Wiring with switch:
This one will require soldering and a little experience:
(switch position in picture indicates 9 volt position)
Sound comparison:
From ShredNChunk:
9v - source.dk/~jbj/EMG9v.mp3
18v - source.dk/~jbj/EMG18v.mp3
Sound comparison from Gear Chat:
www.youtube.com/watch?v=bmiVT_pUDh4
Many of the information I've come across on this tell you to desolder the joint on the input jack - the truth is you don't need a soldering iron, you're just running two 9 volt batteries in a series! Here's a simple way to do it without a soldering iron.
What you really need:
9 Volt battery clip
9 Volt battery
Wire strippers
Electrical tape (or wire nuts)
What to do:
Make sure you have enough room in your cavity for two batteries!
The black wire circled is what connects to your input jack and is the drain
1. Disconnect 9 volt battery
2. Cut the black wire that's circled
3. Strip both ends of the wire you just cut (and the ends of your new 9 volt battery clip if they aren't already)
4. Connect the black wire of your new clip to the black wire that's still attached to your input jack
5. Connect the red wire of your new clip to the black wire of your old clip
6. Insulate with electrical tape
7. Attach two new 9 volt batteries, put the cover back on and enjoy
For those who like pictures:
What I would also like to have is how to put a switch that selects between 9 and 18 volts. This would also be a good indicator in hearing what the differences are.
I'll post up real pics and my findings soon.
Wiring with switch:
This one will require soldering and a little experience:
(switch position in picture indicates 9 volt position)
Sound comparison:
From ShredNChunk:
9v - source.dk/~jbj/EMG9v.mp3
18v - source.dk/~jbj/EMG18v.mp3
Sound comparison from Gear Chat:
www.youtube.com/watch?v=bmiVT_pUDh4
