Amp hum/fizz (2 Viewers)

[therealjohnny]

Is there a quick fix for a fizzing (earthing?) noise on the input jack on my Vox Pathfinder 10? Will something like this do the job?
WD-40 Specialist

or this? Seems a bit expensive
Hosa Caig Deoxit Contact Cleaner 5% Spray 5 Oz - Misc | eBay

 

[ernesto]

Is there a quick fix for a fizzing (earthing?) noise on the input jack on my Vox Pathfinder 10? Will something like this do the job?
WD-40 Specialist

or this? Seems a bit expensive
Hosa Caig Deoxit Contact Cleaner 5% Spray 5 Oz - Misc | eBay

the hum could be from something else, but, if theres dirt on the inside of input jack of your amp...........

DO NOT USE WD-40


get a cheaper contact cleaner ( like this one 2 x 200ml Electrical Contact Cleaner Switch Clean Aerosol Spray Can Dirt Remover | eBay )

unplug your amp.
spray contact cleaner on the jack part of your cable and plug it in and out a load of times ( ooh matron) in to the amp. you could try rotating the jack as your doing it (double ooh matron).
repeat as many times sa youd like

 

[therealjohnny]

Thanks!

 

[ernesto]

Thanks!

hope thats the issue sorted for you!

 

[therealjohnny]

I'll know for sure when I get that stuff. Sounds like the solution though

 

[therealjohnny]

Well this amp just made crunchy noises, as if the battery was running down, and died. I'm guessing some interior part needs replacing. Any ideas whatit could be?

 

[Space]

Its a tube amp right? Could be a tube dying.

 

[therealjohnny]

It's one of these. I've never looked inside it. It works intermittently so I think you're right
https://www.thomann.de/ie/vox_pathfinder.htm

 

[Space]

There's no tubes in it so won't be tubes.

 

[ann post]

I'd some amp years ago that went out with a fizz (wasn't totally clear because it was mid practice) and i've some recollection it was the death of the power supply.

 

[ernesto]

measure the voltages before and after transformer. heck against what they should be, youll know if its the power supply then

 

[therealjohnny]

measure the voltages before and after transformer. heck against what they should be, youll know if its the power supply then

What am I, an electro scientist?

 

[ernesto]

What am I, an electro scientist?

Get a cheap multimeter

 

[Cornu Ammonis]

Lick your fingers and put one on each side of the transformer. Measure the size of the burns afterwards.

 

[ernesto]

What am I, an electro scientist?

Actually if you don’t know what you’re at with voltage, best be safe and stay away from the old electricity

 

[therealjohnny]

I haven't a notion. I'll have to bring it to a grown up to have a look.