Dunlop Fuzzface JDF2 Power Supply

Started by soulfulvirtuoso, January 06, 2006, 02:18:56 PM

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soulfulvirtuoso

Hi,

i have a Dunlop Fuzzface JDF2 and it doesn't have the power supply socket except for the battery. I am planning to put a power supply through it by using an AC adapter with battery clip. Is this possible? Do you know the specs of this pedal as i'm having trouble searching the web (particularly the Current consumption and Polarity)? :icon_question:

petemoore

  Current consumption...just say 'low', FF doesn't draw much comparitively, I forget something under 3ma IIRC.
  Polarity, yes...make sure you get that one right. I'd just follow the +/- symbols on the battery, through the battery clip, to the circuit, then cut the clipwires and use them to go to the adapter jack, but you probably want a switched jack And battery clip?
  I'd add a BFC [100uf or better] capacitor across the power rails [polarity followed], becuase it'll filter some of the PS noise out.
  FF's are quite finicky about their PS's. Depending on the power supply, the FF, and whatever else is in the chain, noise and hum may be more when using a PS.
  All adapters I've tried except the Visual Sound One Spot have produced noise, most let some ripple through and the FF takes and runs with it. YMMV.
Convention creates following, following creates convention.

soulfulvirtuoso

#2
Ok got that. thanks ;D

soulfulvirtuoso

Quote from: petemoore on January 06, 2006, 04:27:34 PM
    Polarity, yes...make sure you get that one right. I'd just follow the +/- symbols on the battery, through the battery clip, to the circuit, then cut the clipwires and use them to go to the adapter jack,

One thing more, how would i know which polarity's which? The power supply i'm talking about is actually a multi AC adapter with battery clip.

looks like this...


petemoore

  There should or maybe a marking on the body, it looks like a...circle with a dot in the middle, but there are lines indicating connectors, the circle represents the outside barrel of the plug, the pin inside the circle indicates the pin inside the barrel of the plug, and then there should be markings +/- next to the barrel and pin marking, often this is just stamped onto the plastic, other times it's easier to read because it's printed.
  An other way is use a DMM to determine polarity, and make the - sign on the screen the same [off] with the PS, as what a battery makes, using the battery marking and DMM Read as an example of what the polarity 'looks like' on the DMM Screen.
 
Convention creates following, following creates convention.

soulfulvirtuoso