Coil whine normal?

The most versatile and user friendly E-Stim control unit available today. If you want More Power, More Control, and more fun, then the 2B is the one you want.
Post Reply
User avatar
mojitoman
Active
Posts: 17
Joined: Sun Dec 26, 2021 7:30 pm
Location: Germany, NRW

Coil whine normal?

Post by mojitoman »

Hi,

experimenting around with my 2B i've noticed it produces noises or coil whine in certain settings.
I'm wondering if that is normal behaviour and has to be expected, or if this is a reason to be concerned.
This for example is happening in continious mode.

Firmware is 2.106

Thanks,
Moji


magic = physics * volition
User avatar
admin
Site Admin
Posts: 2100
Joined: Tue Feb 19, 2008 8:14 pm
Location: Watford,UK
Contact:

Re: Coil whine normal?

Post by admin »

Completely normal.

Si
E-Stim Systems Ltd
User avatar
mojitoman
Active
Posts: 17
Joined: Sun Dec 26, 2021 7:30 pm
Location: Germany, NRW

Re: Coil whine normal?

Post by mojitoman »

Okay, good to know.

Thanks for clarification.
magic = physics * volition
soundcraft
Active Developer
Posts: 108
Joined: Sat Dec 18, 2021 8:15 am
Location: Cambridgeshire

Re: Coil whine normal?

Post by soundcraft »

The noise from the coils is normally louder if your using electrodes with a large contact area at highish levels. The 2B is pretty quiet compaired to my Axis at similar levels and electrodes it can be a bit distracting.
User avatar
Stimaddict
Active Developer
Posts: 991
Joined: Wed Oct 25, 2017 11:56 am
Location: UK

Re: Coil whine normal?

Post by Stimaddict »

Yeah that is normal, not a fault. It's because the output transformers emit a slight buzz under heavier loads.
soundcraft
Active Developer
Posts: 108
Joined: Sat Dec 18, 2021 8:15 am
Location: Cambridgeshire

Re: Coil whine normal?

Post by soundcraft »

Stimaddict wrote: Wed Jan 26, 2022 2:28 pm Yeah that is normal, not a fault. It's because the output transformers emit a slight buzz under heavier loads.
Its good to know I have a heavy load :D :D
Davespages
Active Developer
Posts: 213
Joined: Sun Oct 25, 2020 1:45 pm
Location: Shropshire

Re: Coil whine normal?

Post by Davespages »

soundcraft wrote: Wed Jan 26, 2022 2:34 pm
Its good to know I have a heavy load :D :D
Hopefully afterwards you are releived of said load :lol:
soundcraft
Active Developer
Posts: 108
Joined: Sat Dec 18, 2021 8:15 am
Location: Cambridgeshire

Re: Coil whine normal?

Post by soundcraft »

Davespages wrote: Sun Jan 30, 2022 11:44 pm
soundcraft wrote: Wed Jan 26, 2022 2:34 pm
Its good to know I have a heavy load :D :D
Hopefully afterwards you are releived of said load :lol:
:lol: :lol:

Yes but that don't often last long. :lol:
Post Reply