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Goran
Double Platinum Member
Sweden
2203 Posts |
 Posted - 11/12/2009 : 18:49:56
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I have a Ciok Big John power supply with 9 and 12 volts outputs.
I want 18 volts from it, to drive Fulltone pedals, how do I do it???
I know it�s possible as Voodoo Labs have a "cable" with two phono contacts (one for each two 9 volt jacks), but it cost around US$ 40. |
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cctsim
Silver Member
United Kingdom
418 Posts |
Posted - 11/12/2009 : 19:53:05
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If you connect the two 9V sources in series you should get 18V.
Alternatively, you could you an IC (MAX1044) and a few components to do that:
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Goran
Double Platinum Member
Sweden
2203 Posts |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 11/13/2009 : 08:42:52
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quote:
Originally posted by Goran
An interesting article on 18 V
http://www.custom-sounds.com/epages/Gagar.sf/en_US/?ObjectPath=/Shops/CustomSounds/Categories/articles/18volts
How many volts can be used with Boss PSA pedals and not burning them up???
If I remember right there is a zener diode protecting the circuit in some Boss pedals, what can they take?
Many Boss PSA pedals have an 11V protection diode - anything more will burn something out. Others have variations on regulation circuitry... an example is the DD-3 which simply will not work on anything higher than 9VDC regulated.
The short answer is... (and this is a black-and-white technical thing, no emotional content) unless you understand the schematic intimately, don't use anything higher than 9V.
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Goran
Double Platinum Member
Sweden
2203 Posts |
Posted - 11/13/2009 : 09:21:24
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quote:
Originally posted by Laurie
quote:
Originally posted by Goran
An interesting article on 18 V
http://www.custom-sounds.com/epages/Gagar.sf/en_US/?ObjectPath=/Shops/CustomSounds/Categories/articles/18volts
How many volts can be used with Boss PSA pedals and not burning them up???
If I remember right there is a zener diode protecting the circuit in some Boss pedals, what can they take?
Many Boss PSA pedals have an 11V protection diode - anything more will burn something out. Others have variations on regulation circuitry... an example is the DD-3 which simply will not work on anything higher than 9VDC regulated.
The short answer is... (and this is a black-and-white technical thing, no emotional content) unless you understand the schematic intimately, don't use anything higher than 9V.
I will not, thanks Laurie, the answer is what I supposed  |
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stinkfoot
Silver Member
Sweden
181 Posts |
Posted - 11/24/2009 : 01:52:11
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Just filling in here - the Cioks is not isolated (all the outputs share a common ground rail), so you can't run two of its outputs in series. That only works on separate power sources (each output on a PP2+ counts as a separate power source).
Other than that, I'm with Laurie. :D You should only experiment with higher voltages on pedals where the manufacturer has said it's ok. Some of the Fulltone pedals are listed as "ok", though, so if you have one of those, feel free to try it.
/Andreas |
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9 to 18 Volt
