VH4 ticking noise

[Pearly Gates]

Hi, just noticed this noise from my VH4. I don't think it was there before (?) not noticeable when playing, but quite noticeable when guitar volume is rolled off to 0. More noticeable when gain is turned up especially channel 3/4.

Is this normal or something wrong? I have tried swapping in a new preamp tube into each position (besides V7 - hard to reach without taking chassis out or grille off) and no difference. If I pull out input cable there is no noise.

You can hear it when I'm not playing:
https://whyp.it/t/vh4-noise-bqol3/
Amp running with guitar plugged in 0 volume:
https://whyp.it/t/vh4-noise2-avw8V/
edit:
I just tried turning it on again and it sounds fine no ticking just normal hiss. I didn't change anything and tried turning it on and off a few times before to change all the tubes etc. weird... wonder what is causing the problem

 

[Leo Diezel]

Did you have your cellphone or any other transmitter near guitar/input of VH4?

 

[Deleted member 23705]

Leo is right, it could be your guitar pickups picking up wireless frequencies. I've noticed this if I'm playing near my wireless router and my guitar is facing a certain way.