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Unread 02-20-2011, 07:45 PM   #51
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Quote:
Originally Posted by sh4z View Post
Hi Guys,

I have been discussing with a friend of mine about making up a circuit for switching between batteries 9v and 18v.

Essentially the switch will be 4 way with the following options.
http://i205.photobucket.com/albums/b...ovan/modes.png

1. 2 x 9v in Series - 18v mod.
2. 2 x 9v in Parallel; 9v.
3. 1st Battery 9v.
4. 2nd Battery 9v.


Any ideas
there is really no point for this. you'll only have two sounds. the 9v regular sound and the 18v sound. having two 9v batteries wired in parallel would only increase battery life, and being able to switch from one battery to another is pretty pointless. i would suggest only wiring two of the option mentioned. the regular 9v only 1 and the 18v series thing. but hey. not my choice.
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Unread 03-09-2011, 06:26 PM   #52
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Thanks for the input... any idea how to actually wire it up though? I was hoping to get like a schematic or something.

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Unread 03-14-2011, 09:55 PM   #53
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Originally Posted by sh4z View Post
Thanks for the input... any idea how to actually wire it up though? I was hoping to get like a schematic or something.
i really dont know how to wire the 9v and 18v mod to a toggle switch to change whenever. i know someone has done it, but i havent done it myself. i just stick with th 18v mod. feel free to search for it though! it might even be in this thread
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Unread 04-29-2011, 10:28 PM   #54
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I tried 18v mod and I preferred the 9v sound. Not a huge difference either way, but definetly noticable. The thing is, when I roll the volume back just a TINY bit when in 9v mode, it sounds almost and feels almost like 18v mod with volume max. I do think the toggle option is perfect solution though. Variety is always a great option.
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Unread 04-30-2011, 03:19 PM   #55
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Just did the 18v mod in my RGA8 with emg 808 and I can safely say that I really prefer the 18v mod. The bass was definitely much more punchier and the highs were more pronounced. By the way Im tuned EBEADGBE so I needed more bass for the E but the pickups didnt seem to handle that too well but now I just couldnt be more happier. Now how the hell do i get rid of the damn buzz
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Unread 05-05-2011, 08:18 PM   #56
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Quote:
Originally Posted by TRENCHLORD View Post
I tried 18v mod and I preferred the 9v sound. Not a huge difference either way, but definetly noticable. The thing is, when I roll the volume back just a TINY bit when in 9v mode, it sounds almost and feels almost like 18v mod with volume max. I do think the toggle option is perfect solution though. Variety is always a great option.
what pickups are you using?
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Unread 05-05-2011, 08:27 PM   #57
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81/60 combo 9v for me. Although everyone's setup is different, and the string setup(tension/tuning) even makes a difference what will work best.
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Unread 08-30-2011, 05:54 AM   #58
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In my 707 there was a little more dynamics in clean sounds, distortion sounds are already compressed on their own, so the difference is minimal
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Unread 10-23-2011, 09:46 AM   #59
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I have been using an 18Volt mod in my Ibanez RG2228 8 string for about a year now and have been very happy with it actually opening up the characteristics of the EMG's tone but I have an idea.....If I wanted to install a push pull volume knob as a switch to say RUN the 18 volt mod as the knob is normally pushed in and then just 9 volts pulled out ...has anybody tried this seems easy enough...just curious on opinions
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Unread 10-31-2011, 03:48 AM   #60
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Awesome. Doing this at some point this week!
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Unread 06-03-2013, 08:29 AM   #61
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Quote:
Originally Posted by sh4z View Post
Thanks for the input... any idea how to actually wire it up though? I was hoping to get like a schematic or something.
I made a graphic explanation although it doesn't look as good as the one in the OP as I used LibreOffice Draw.

As the picture says I've not tested it but if you look at a DPDT on-on switch datasheet you can check this yourself: Switch position 1 connects the pins 1 & 2 plus 4 & 5. As pin 4 is connected to the plus pole of the first battery an pin 5 to the minus pole of the second battery and there is nothing connected to pin 1 this is the only connection and equals a serial connection of the batteries which means you get the 18 V.
Switch position 2 connects the pins 2 & 3 plus 5 & 6. Pin 2 is connected to plus on battery no. 2 and pin 3 to plus on battery no. 1. Pin 5 is connected to minus on battery no. 2 and pin 6 to minus on battery no. 1. So this is the parallel aka 9 V mode to safe battery life.

Check with a DMM before connecting to the pickups.
Don't have one? Get one! A cheap one will be sufficient.
Attached Images
File Type: jpg Active-PU_18V & 9V switchable.jpg (30.1 KB, 38 views)
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