Bare Knuckle Pickups Forum

Forum Ringside => Guitars, Amps and Effects => Topic started by: hamfist on May 16, 2008, 07:41:32 PM

Title: Blackstar pedal Power Supply trick
Post by: hamfist on May 16, 2008, 07:41:32 PM
I've always known that the power supplies to the Blackstar pedals can tend towards causing a fair bit of hum.
   Anyway, I was moving my HTdist's PSU around again trying to find the "point of least hum" in comparison to the rest of my pedalboard after yet another jiggle round of the board.  Just by chance I did something different I haven't done before ..... I turned the power supply upside down. And Voila, the hum virtually disappears.  Big result !!

  Just something that might work for you, or might not. But it's worth a try.
Title: Re: Blackstar pedal Power Supply trick
Post by: opprobrium_9 on May 16, 2008, 10:31:21 PM
Quote from: hamfist
I've always known that the power supplies to the Blackstar pedals can tend towards causing a fair bit of hum.
   Anyway, I was moving my HTdist's PSU around again trying to find the "point of least hum" in comparison to the rest of my pedalboard after yet another jiggle round of the board.  Just by chance I did something different I haven't done before ..... I turned the power supply upside down. And Voila, the hum virtually disappears.  Big result !!

  Just something that might work for you, or might not. But it's worth a try.


can you show a picture?  I am having a hard time visualizing it.
Title: Blackstar pedal Power Supply trick
Post by: maverickf1jockey on May 16, 2008, 10:40:28 PM
The power supply for the Blackstar pedals has a standard 3-pin plug that goes into the mains socket and the transformer is in a roundish box further along the cable (which has a flattened face for obvious reasons).

I think he meant that the transformer was upside down rather than the plug as they are separate in this circumstance.
Title: Blackstar pedal Power Supply trick
Post by: hamfist on May 18, 2008, 06:49:16 PM
Quote from: maverickf1jockey

I think he meant that the transformer was upside down rather than the plug as they are separate in this circumstance.


Exactly