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发表于 2013-9-20 15:19:24
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Sun Face Options
Power Supply Problems
We do not like to add a power jack to these pedals, as using a power supply is a compromise with a fuzz. The germanium versions are reverse polarity, so sharing a power source with another pedal will blow out the power source. It blows because the normal pedal's negative ground flows through the patch cord shield to the positive ground of the fuzzface, shorting out the power supply. Positive 9V in the fuzzface is connected to ground through your patch cords. Here is an article about the problems of using power jacks on reverse polarity pedals from Andreas in Sweden. Using a single power cable from the Voodoo Lab or other isolated power supplies is safe though. If you get a power jack but use the internal battery, there are no problems or compromises at all.
We do not require using a reverse polarity plug on any of our pedals. Use normal center negative boss type power supply wiring, even if it's a germanium sunface. This does NOT mean you can share power with another pedal though.
Sharing power on a silicon sunface is not a problem as it uses negative ground.
Using a power supply may add AC hum noise, and can affect the tone, as the best sound is obtained by using an old style non-alkaline battery. I get these two for a dollar at the DOLLAR STORES. I like the Eveready 1222 "black cat", Maxell, or Panasonics. An Alkaline battery will sound a bit dull in a germanium fuzzface, it can lose some character (you can hear the difference in a sound sample above). It's not just the voltage that makes batteries and power supplies sound different. It's the resistance, inductance, and capacitance in the battery, which is part of the circuit in a fuzzface.
A power supply can also cause oscillation (squealing) on some high gain sunfaces. TheGigRig virtual battery should solve oscillation problems, along with isolating the power so you can use any power supply with our positive ground pedals. The VBATT also solves ground loop problems which occur when you use a daisy chain or the same power with more than one pedal. We now offer the Virtual Battery as an accessory and sunface option on our shopping website. Here is more info on the GigRig Virtual Battery |
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