I did replace the Energy saving globes around the studio with halogen globes, this did reduce the noise for guitars with single pole pickups. My control room developed a clicking / crackling sound in the monitors one day, eventually after I had given up to go home and turned everything off I noticed our security Fluorescent tube over the front door had began to flash on and off during the day (I leave it on 24hours). Switched it off went back inside and fired up the control room again no noise. Replaced the tube all good. Bloody Fluorescent tube was not even on the control room circuit
Just shows the things that can act up.
Alan
About 10 years back, maybe even a bit longer...before the new light bulb rules went into effect here in the USA, I thought I would try some low-wattage, energy saving bulbs...the ones that fit in a normal incandescent bulb socket, where they had some sort of small transformer circuit built into the base of each bulb.
I was just going to used them for my outdoor porch/deck/door lights, since I would just turn those on overnight, and I figured the energy savings would help with the electric bill.
Well...they worked OK...and everything seemed to be fine.
I had not done any work in my studio for several days following, so finally one evening I went into the studio, turned on my gear...and there was this weird buzz coming from the studio monitors.
*sigh*....I thought something was going bad in one of my audio pieces...so OK, let's start the elimination process.
After a couple of hours...I gave up...couldn't narrow it down to anything in the studio...so I figured I would let it ride and maybe it was just a one time fluke...something weird with the electric supply...etc.
Next day I went in during the afternoon...no buzz.
I think I then took a dinner break...came back...there's that $#@!*& buzz again!
So...for the next few days, this went on, and I kept looking for the cause, trying this and that, always assuming it was my gear...or the electric...
...and then a light bulb went on in my head...
...and I put 2+2 together and realized that it was those stupid "energy saver" bulbs.
Went and removed all of them and put back normal incandescing bulbs...no more buzzing.
Those bulbs weren't even on the same line...I have dedicated lines to the studio...and they still caused noise.
I don't use any energy saver bulbs that have built in transformers or whatever they use. I have fluorescent bulbs in my shed, but they only go on when I'm in the shed...so they don't cause any problems.