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Re: 2B Wave mode on different powersettings

Posted: Tue Jun 04, 2019 8:38 am
by Atlas
Hi Tobjac,
Tobjac wrote:
Fri May 24, 2019 8:36 am
when channel A drops, channel B gets a lot stronger in like under a second and then does its wave further because the battery can't handle both channels at the same time :D
I think I might have the solution to your problem. What you describe happens when you link both Channel A & B to the same electrode. When you do that, channel A & B cancel out (on that electrode) ... which means that if you lower A, B gets more intense (until A is at 0).

It's one of the first things I've learned (pain is a good way to memorize ^^)

Hope it will help you.

Re: 2B Wave mode on different powersettings

Posted: Tue Jun 04, 2019 12:34 pm
by Tobjac
I don’t quite understand what you mean 🙈 since I’m using pads at the moment I can’t link both channels to one electrode.

Re: 2B Wave mode on different powersettings

Posted: Thu Jun 06, 2019 7:44 am
by estimbird
I believe Atlas talks about a setup which isnt possible with pads-only without some y-adapter.

For example, with a loop and 2 pads, you can have a configuration where the black connector of channel A and channel B is attached to the same loop (simply because the loop has two ends / connectors) and the red/yellow connector of A to one pad and the red connector of B to another pad. This is a kind of three-phase setup.

Re: 2B Wave mode on different powersettings

Posted: Thu Jun 06, 2019 8:10 am
by estimbird
Another thought: In a setup that uses both channels, feelings often interfere and overlap. Therefore it can easily be that you hardly notice channel B, because channel A produces a strong stimulation. When channel A goes to zero, you feel quite suddenly and intensively channel B - much more than before.

Re: 2B Wave mode on different powersettings

Posted: Mon Jun 10, 2019 1:51 pm
by electrofun
Tobjac wrote:
Fri May 24, 2019 8:36 am
using it with battery feels somewhat weird since when channel a drops channel b gets a lot stronger in like under a second and then does its wave further because the battery can't handle both channels at the same time :D
Yes, the 2B does that. Especially at relatively high level, and more so as the battery gets drained.
This gets a bit technical: the 2B's output power is very dependent on the power supply voltage, and the voltage of the battery drops more as it gets drained, and as it gets loaded. So turning down 1 output will reduce the load and the battery voltage can rise; so the power on the other output will increase.

Best simple solution: use the external power supply.

The ElectroPebble doesn't do this; it's output power is much more independent from the battery voltage.

Since I often use my toys were it's difficult to have a power socket nearby, I made a custom 'power station' with a rechargeable battery, medical grade floating DC/DC convertors, and a local stabilizer (12V for the 2B, 9V for the ElectroPebble and Series 1) in the unit itself. Works great, and gives the 2B the same power as using the external psu.

Re: 2B Wave mode on different powersettings

Posted: Tue Jun 11, 2019 10:09 am
by Tobjac
electrofun wrote:
Mon Jun 10, 2019 1:51 pm
Tobjac wrote:
Fri May 24, 2019 8:36 am
using it with battery feels somewhat weird since when channel a drops channel b gets a lot stronger in like under a second and then does its wave further because the battery can't handle both channels at the same time :D
Yes, the 2B does that. Especially at relatively high level, and more so as the battery gets drained.
This gets a bit technical: the 2B's output power is very dependent on the power supply voltage, and the voltage of the battery drops more as it gets drained, and as it gets loaded. So turning down 1 output will reduce the load and the battery voltage can rise; so the power on the other output will increase.

Best simple solution: use the external power supply.

The ElectroPebble doesn't do this; it's output power is much more independent from the battery voltage.

Since I often use my toys were it's difficult to have a power socket nearby, I made a custom 'power station' with a rechargeable battery, medical grade floating DC/DC convertors, and a local stabilizer (12V for the 2B, 9V for the ElectroPebble and Series 1) in the unit itself. Works great, and gives the 2B the same power as using the external psu.
Yes since I’ve now got my power supply it’s much better now.

Re: 2B Wave mode on different powersettings

Posted: Tue Jun 11, 2019 11:23 am
by mrbutt89
Hi Tobjac.

I'm pleased you got the power supply. My feeling is that the 2B should always be used with the power adaptor unless there is a particular reason for using it on batteries only (e.g. if you want to stim outdoors).