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hungrymusician
Bronze Member
Malaysia
95 Posts |
 Posted - 02/04/2009 : 17:16:13
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Hi,
Has anyone ever powered their Boss pedals with 18v?
I know its not really relevant but it will save me lots if i can power my CE-2 with 18v.
Many thanks! |
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DeFrag
Moderator
USA
3409 Posts |
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zerksies
Double Platinum Member
USA
3406 Posts |
Posted - 02/04/2009 : 17:33:28
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| don't do it |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 02/04/2009 : 17:40:45
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quote:
Originally posted by DeFrag
No, overvoltage will fry components & you'll be left with cool paperweights for your desk!
You can use a voltage divider to reduce the voltage from 18V to 9V. It is a very simple circuit that can be built inside a cable.
http://en.wikipedia.org/wiki/Voltage_divider
http://www.beyondttl.com/calculator-vdiv.php
G'day! Short answer is - please don't do it! Some pedals will be killed outright, some will work for a while then die, some will just have the reverse protection Zener (11V) burn out, then the pedal will die.
The voltage divider calculations above are critically dependent on the load "resistance" - in this case you would need to use the pedal current draw to do the calculations (measured, not published), and be aware that it changes (eg when the LED is on vs off). I'd be very careful if using that approach... heck, please just don't use 18V 
Another option... is to build a small regulated supply which will regulate the 18V down to 9V gracefully, like this:
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=4014
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hungrymusician
Bronze Member
Malaysia
95 Posts |
Posted - 02/04/2009 : 17:47:01
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Okay,got it.
thanks all! |
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Topic |
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Power my Boss with 18v?
