The Aussie Pinball Arcade
Aussie Pinball Forums => General Chat - Non Pinball/coin-opp Discussion => Topic started by: faza on May 09, 2012, 06:00:20 PM
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Hi guys I am building a power supply to power my sons guitar pedals ' What type of capacitor is best to use for the nine volt DC filter capacitors ie electrolytic etc.
Cheers
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Electrolytic
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Hi, yes an electrolytic capacitor, at least 1000uF 16v in value, even 2200uF 16v would be better. Voltage rating can be higher but i wouldnt go any lower than 16 volts. Will the power supply be using a voltage regulator at all, or unregulated? Regulated is much better (less noise/hum).
I have built power supplies for guitar pedalboards in the past using LM317T adjustable voltage regulators, set for 9 volts. This gives you up to 1.5 amps capacity to run effects, depending on the transformer amperage you are using. It all depends on what effects pedals are being used.. delay effects, ie digital delays, chorus/flangers etc are more power hungry than, say overdrive or wah pedals.
hope this helps! being a muso myself, im happy to help out some more if needed ^^^
Cheers... Mitch
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Thanks guys will use electrolytic Mitch the power supply I am building has eight 9vdc supplies and one 9 volt AC supply for line 6 pedal board.
Using one primary and eight 11 volt secondaries and one 9 volt AC winding and yes it is regulated.
Website attached is an article on it.
Cheers
Sorry forgot to add attachment
http://www.geofex.com/Article_Folders/Spyder/spyder.htm
John
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Thanks for the link, interesting solution for the ground loop problems, i have never seen anything quite like THAT setup before!! *.*
I have no doubts at all that it would eliminate ground loop hum completely.