I started my E-Stim journey about 10 years ago by using a Tens Machine for pain relief. My inquisitive mind sent me on a voyage of discovery down the sexual path. I am NOT into inflicting pain or receiving pain in anyway, I enjoy the pleasant feeling created by stimulation different nerve groups.
Being a man, it is quite easy to work out that you attach the electrodes to the penis and balls as well as anus. Females also use E-Stim for their clitoris, vulva and anus. There is a web site which caters for both sexes and as we are not supposed to create links to other sites just google Smartstim and you will find the site...
Hardware - There are a number of purpose built devices (ET312B or E-Stim2B) but they are quite expensive and of course there are Tens machines but they are limited in what they can do. I built a Davey Box or sometimes called a Phasor in accordance with the description on the Smartstim site. This box plugs into a Laptop of PC audio socket and boosts the signal to the required level. I included additional volume controls on each channel so I can balance the signal on each channel moving the physical position of the sensation.
Software – I install the Smartstim Audio Signal Generator software available on the Smartstim site onto a laptop and desktop PC and use the wealth of pre-defined waveforms provided. In addition, there are MP3 files that again are available on the site which I play using the Goldwave software.
Electrodes - Placement of the electrodes is quite important to achieve a nice feeling. The electrodes can be placed as far away as the back of the knees or directly on the penis or clit. The closer the electrodes are together the greater the sensation. The smaller cross sectional area the electrodes have, the greater the sensation, however, if the electrodes are too small they can give you a bit of a nip. I use conductive rubber for the external electrodes which I wrap around my penis and a metal butt plug which I sometimes use. I generally connect channel one +ve to conductive rubber straps behind my penis head and channel two +ve to Conductive Rubber around my balls/penis base. Both -ve leads I connect to my bi-polar ass trode. I am uncircumcised and generally draw back my foreskin and place a conductive rubber trode behind my penis gland. I find this gives me the most pleasure and my bi-polar butt plug pounds my ass with ghost thrusts.
Conductivity – The human body is primarily made up of water which is a good conductor of electricity. The more water the better the conductor, for example the inside of your mouth will conduct better than the dry skin on the back of your hand. You will need to apply more voltage to dry skin and places where there are fewer nerves to feel any sensation. Applying too much voltage to a small area of skin can cause reddening and a burning sensation. However, applying a conductive gel to the surface will increase the contact surface area and improve the conductivity. It is recommended that when using metal electrodes, a liberal amount of water based conductive gel is applied to the skin before attaching the electrodes. For conductive rubber electrodes conductive gel is optional as the conductive rubber tends to hug the skin more securely preventing hot spots. For internal use a water based conductive lub is essential. Too much conductive lub is about right for internal use.
Sensations – When I turn up the volume my cock bounces up and down in time with the signal and the whole length of my penis throbs to the tune. My anus and inside my rectum also pulsates to the signal on channel 2. Depending on the applied signal you can generate a waveform that feels like someone is licking the full length of you cock and/or the butt plug is being trusted inside you bum. By altering the volume controls the sensation keeps you on the edge of cumming for as long as you want. All you have to do is lay back and enjoy the ride. It is out of this world!!
When you are ready or you are totally exhausted, just turn up the volume a little and you are orgasming all over the place. There is so much come you need a towel at the ready to mop it all up.