ET302R and ET312B Comparison and Specifications

Specification

ET-302R  Remote/Audio

ET-312 Advanced Dual Channel

Channels

2 Independent/Isolated

2  (Independent/Isolated) + Phantom 3rd Channel (TriPhase Output)

Display

2-Character Lighted LED

32-Character Lighted LCD + LEDs

Operating Modes

10 – 5 normal, 2 audio, 3 training

18 – 12 normal, 3 audio, 3 tri-phase

Audio  Processing

TENS style modulation

Multiple Advanced TENS style modulation

Remote Control

Digital RF 4 Button (100′ max range)

N/A

Controls

ON switch & 10 function remote

2 output level controls, Multi Adjust control, 4 Tactile Input Keys

Dynamic Pulse  Technology Parameters

Dynamically adjusted amplitude, modulation, pulse width, rate, frequency, duration & power

Dynamically and manually adjusted amplitude, modulation, pulse width, rate,  frequency, duration, ramp, power, audio sensitivity & more

Output Waveform

Symmetrical AC True Bipolar

Symmetrical AC True Bipolar

Nominal Output Power

60 micro coulombs per pulse

80 micro coulombs per pulse

Output Jack(s)

1 or 2 3.5mm (1/8″)

Two 3.5mm (1/8″) Heavy Duty

Pulse  Width

0 – 500 µsec dynamically adjusted

0 – 500 µsec dynamically adjusted

Microphone

Built-in high sensitivity

Supplied external electret

Audio  Input

Built in microphone

3.5mm stereo line, 10k ohms, 3 volts RMS max & 3.5mm mono microphone

ErosLink Interface

N/A

3.5mm Link Jack – PC Compatible

Disposable Battery

Standard 9 Volt Alkaline

N/A

Rechargeable Battery

N/A

12v High Capacity 1000 charge cycles

AC Power

N/A

UL Listed 12 volt Adapter/Charger 400+ma

Battery Life

2 – 24 hours

4 – 48 hours

Dimensions (approx.)

2.4″ wide, 3.8″ long, 1″ high

8″ wide, 6.75″ deep, 2.5″ high

Weight (w/ battery)

4.2  oz

2 lbs 14 oz

Shipping Weight

approximately 1 pound

approximately 5 lbs

Supplied Accessories

Remote control, (2) right-angle banana plug leadwires, 9-volt battery,  user guide

AC adapter/charger, microphone, two banana plug output cables, audio cable, 22 page user guide

Options

Extra remote control
Uniquely coded remote

ErosLink Software Package, Link Cable, 220 volt AC Adapter

ET232 and ET312B Comparison and Specifications

Specification

ET-232 Portable

ET-312 Advanced Dual Channel

Channels

2 Independent/Isolated

2  (Independent/Isolated) + Phantom 3rd Channel (TriPhase Output)

Display

2 Blue Output LEDs

32 Character Lighted LCD + LEDs

Operating Modes

15 modes including audio and HiFrequency (300Hz) mode

18 – 12 normal, 3 audio, 3 tri-phase

Audio  Processing

TENS style modulation

Multiple Advanced TENS style modulation

Remote Control

Controls

2 output level controls, MultiAdjust control, 1 mode select/power control

2 output level controls, MultiAdjust control, 4 Tactile Input Keys

Dynamic Pulse  Technology Parameters

Dynamically adjusted amplitude, modulation, pulse width, rate, frequency, duration, power & more via the MultiAdjust (MA) control

Dynamically and manually adjusted amplitude, modulation, pulse width, rate,  frequency, duration, ramp, power, audio sensitivity & more

Output Waveform

Symmetrical AC True Bipolar

Symmetrical AC True Bipolar

Nominal Output Power

60 micro coulombs per pulse

80 micro coulombs per pulse

Output Jack(s)

2 x 3.5mm (1/8″)

2 x 3.5mm (1/8″) Heavy Duty

Pulse  Width

0 – 500 usec dynamically adjusted

0 – 500 usec dynamically adjusted

Microphone

Built-in high sensitivity

Supplied external electret

Audio  Input

Built in microphone or line input (mono)

3.5mm stereo line, 10k ohms, 3 volts RMS max & 3.5mm mono microphone

ErosLink Interface

3.5mm Link Jack – info

3.5mm Link Jack – PC and Mac OS X

Disposable Battery

Standard 9 Volt Alkaline

Rechargeable Battery

12v High Capacity 1000 charge cycles

AC Power

UL Listed 12 volt Adapter/Charger

UL Listed 12 volt Adapter/Charger 400+ma

Battery Life

4 – 8 hours (alkaline)

4 – 48 hours

Dimensions (approx.)

3.3″ wide, 4.4″ long, 1.5″ high

8″ wide, 6.75″ deep, 2.5″ high

Weight (w/ battery)

8  oz

2 lbs 14 oz

Shipping Weight

approximately 2 lbs

approximately 5 lbs

Supplied Accessories

AC adapter/charger, 9-volt battery, two banana plug output cables, color user guide

AC adapter/charger, microphone, two banana plug output cables, audio cable, 22 page user guide

Options

ErosLink2 software

ErosLink Software Package, Link Cable, International AC adapters

Got a problem?

I’m not sure how to connect my ET-312 to my computer?

I have questions about how to use the ErosLink software?

Solutions to Other Common Problems

I lost the remote control to my remote unit. How do I get a new one?

  • Solution: SexTek normally stocks extra remotes.

I lost the AC Adapter for my unit. How do I get a new one?

  • Solution: SexTek can normally supply AC Adapters. Do not use any other adapter without checking with SexTek first. You may cause serious damage to your unit.

My  ET-312B (or ET232)  works great while connected to my portable CD player but how do I listen to the music at the same time?

  • Solution: Some portable CD players have a “line” output as well as a headphone jack. Simply connect your ErosTek unit to the line output and use your headphones as usual. If your player only has a headphone jack, you can get a “Y” cable locally to allow you to plug both the headphones and your ErosTek unit at the same time. You can use the same trick with your computer’s sound output.

How do I connect your product to a home stereo system?

  • Solution: The best way is to use the “Tape Out” or “Tape Record” jacks. You will need a (widely available) cable with RCA plugs on one end and a 3.5mm plug on the other.

I tried connecting my CD player to the audio input and it doesn’t do anything.

  • Solution: The cable should be plugged into the headphone or line output of your CD player.  Try turning the Multi Adjust control all the way up.  Try increasing the volume on your CD player.  Some CD players have a volume limiting feature that should be turned off.  Finally, some CD’s (especially classical ones) have an extremely wide dynamic range. It is normal for the quieter passages on these recordings to not cause any stimulation. Most people find pop or dance music works best.

The output of my unit is erratic or unsteady.

  • Solution: This is likely due to a bad cable or connection. With use, the cables do wear out and can develop an intermittent connection–especially at the banana plugs.  Try a different cable and/or accessory and see if the problem goes away.

With most electrodes, my unit has power to spare, but I can sometimes turn it all the way up with one particular electrode.  Is that normal?

  • Solution: A few different things might be happening. First, most electrodes must be damp or wet when using them. Ideally, you should use a conductive gel designed for e-stim (TENS) use. Dry electrodes will not work properly. Second, if you’re using our new ET-312, make sure the Set Pwr Level? menu option is set to the Normal or High level.  Finally, certain electrodes made of conductive rubber materials have a high internal resistance. This makes the sensations less intense with these electrodes regardless of what type of e-stim unit they’re connected to. It’s a limitation of the electrode design.

If you don’t see an answer to your problem above, please check our Frequently-Asked Questions or Repair category for additional information and assistance. You can also reach our Customer Support department too.

Installing ErosLink on Vista

Installating ErosLink

ErosLink for the ET312B runs on Windows 98ME through Vista. Refer to the ErosLink User Guide for more information on installing and using this software.

If you are using our USB to Serial adapter you need to upgrade the USB driver for Vista after installing ErosLink using the CD. After downloading and installing the update, you will need to restart your computer in order to refresh the USB driver.

Assembling the Cable

The serial link cable connects to the USB adapter via a 9-pin “D” connector and is secured with thumb screws. The USB cable is connected to an available USB port on your computer. The mini plug end is plugged into the Link jack of your ErosTek ET312B.

ET312B-front-panel-closeup

It’s a good idea to connect the cable from your computer to the ET312‘s Link port with the ET312 OFF, then turn it ON just before launching ErosLink to make sure it has a fresh start.

Also, make sure that the front panel of the 312 is positioned so that the jacks are properly lined up with each hole. Sometimes the panel may vibrate enough during shipment to obscure the Link jack. Pressing inward on the front panel while moving it side to side often makes it slide into place and remain there.

If you have any problems installing ErosLink, please let us know.

Do you have an ErosTek ET312B and want more information about ErosLink?

ErosLink Software for the ET312B

Software for your Hardware!

If you already own an ErosTek ET312 Power Unit, this is one option you will not want to pass up! Using any Windows or Apple Mac OS X computer, ErosLink allows you to do several amazing things, including:

  1. Load new routines (25 included on CD!)
  2. Change existing routines
  3. Create completely new routines
  4. Interact with a running routine in real-time

There are two versions available: Windows and Mac OS X

ErosLink for Windows comes with a custom molded serial cable for direct connection to an available serial port, an installation CD, electronic user guide (integrated into the program and viewed using any web browser), and several new factory routines to experiment with and download into your ET-312! The possibilities are limited only to your imagination.

Now runs on Vista! Find the latest USB drivers here.

Ready to Buy?

Stereo-Stimming with your ErosTek ET312B

There are two camps, two divergent ways of using stereo audio tracks to produce erotic electrostimulation: one is cheap and the other is much safer.

The Cheaper (and more dangerous) Way

This is the way I got started years ago. When I was still in high-school, I didn’t have an ET312. No one did. It was 1982. I had an awesome Lafayette 4-channel amplifier and an IBM PC that was capable of producing crude tones from its onboard signal generator. I connected the audio output of the PC to an unused audio input of my stereo amp and connected the speaker wires to pieces of aluminum foil and solid copper wire attached to my skin: cock and balls. I was just 15 years old. I didn’t know about ground loops or that the amplifier was designed to couple with a different load than I was presenting it with. It didn’t matter. I was a geek and I was horny. I wrote a simple BASIC program on the PC to make musical tones, amplified them and applied them to my cock and balls. It felt great! Until I got numb. That happened in less than 5 minutes of use. Bummer

I didn’t realize that I was zapping my nerve endings big-time.

It turns out that audio waves are more or less continuous in nature. They can be represented as a sum of one or more sine waves which when added together, produce a signal of varying complexity and tonal character. Even though my PC was making square waves (which were really edgy and beefy, another reason why I was getting numb so quickly), the end results of using audio waves through a stereo amplifier are usually:

  1. too much current is applied to your body,
  2. the current is not well-isolated from the AC line voltage,
  3. you’ll have a numb and tingly feeling wherever the electrodes were (sometimes up to 24 hours later).

But it’s cheap. Everybody has an amplifier. Some users have made strides to make stereo amplifier e-stim safer through the use of isolation transformers and resistors. Better but still not much safer. Nothing beats a device made to be used for the job it was intended. Stereo amplifiers are made to produce sound using speakers. The ErosTek ET312B was made to produce pulses that feel great when you connect them to your body.

Since the early days, I’ve experimented with isolating the outputs (using transformers) and series resistors (to limit the current) and low-duty cycle waveforms (to limit the average power delivered to my balls) but I still can’t get over the problems inherent in using a stereo amplifier for erotic e-stim purposes. It’s difficult to decide where to set the outputs for each type of wiring configuration and audio track used, and it doesn’t feel better than an ET312B running in Audio 3 mode with a well-prepared stereo-stim audio track being played into it. So I’m proposing…

A Better (and safer) Way

I’ll admit that I get to experiment a fair amount with e-stim these days. I’ve been playing with the ET312 for about 10 years and the newer ET232 especially when I’m traveling (because it’s smaller and lighter). And lately I’ve been discovering the joys of stereo audio e-stim especially using some of Mr. Terminator’s (aka naughtyelectron) files he calls the “Pulsinator Suite.” (Read my post touting the joys of these files with links to the download site.)

But why is e-stim safer with a made-for-play device like the ET312?

For one thing, it has been designed to be connected to a human body (not a speaker). That one distinction causes its design to be made more like a medical TENS or EMS unit and less like a consumer grade audio amplifier. It has isolated outputs using transformers, current limited operation by way of sensing resistors and a micro-controller that continuously monitors the outputs for proper current levels. And it gives the user better control of the output via dedicated output controls for each channel and output LEDs that glow in proportion to the output signal being generated by the processor.

The waveforms themselves are different too. They consist of very narrow pulses not at all like the ones used for making sound waves and sound edgy and thin if you listened to them. But they are just what the nerve endings like, as one tiny pulse is sensed as being there much longer than it actually is, the nerve endings get exposed to less current over time, can recover much faster once the current is off, leaving you tingling only when you’re wired and stimming. Of course, I can tell you from experience that stimming at very high levels for prolonged periods of time will leave you with a tingle for a few minutes or so after you stop stimming, but it’s nothing compared to a single session using a stereo amplifier. Seriously.

Now back to the (audio) program…

If you have an ET312, it’s easy to vastly expand its capabilities using a few common household items:

  • an internet connection with browser
  • an iPod (or other mp3 player) -or-
  • a music application like iTunes (or similar)
  • the stereo cable that came with your ET312B

The first step is to find some audio files to stim with. There is a forum out there called SmartStim that has some very dedicated users that have created and uploaded a variety of stereo files for your enjoyment, all free using your browser. You might be browsing for awhile though. You have to be wired up and playing the track to really know what it’s going to feel like, and that takes some time. So, leave yourself a block of time to peruse the library of files you’ll find there and make a few playlists on your music player (iPod) or application (iTunes) to keep the ones you like in the order you enjoy most.

But we’re jumping ahead just a bit.

First: find some tracks (see my post for a starting point or our AudioStim category for lots more). Then: download them using your browser. Next: import them to your music player like you would any other music file.

Get Wired!

Connect yourself in a comfortable configuration with your ET312B. It helps to use both channels (A and B) when doing stereo e-stim since both the left and right channels will be engaged and nice things happen when you can feel the effects of one channel playing alongside the other.

Wired up? Okay. Make sure your configuration is working by testing it using one of the ET312’s factory routines (like “Waves” for example).

  • Connect one end of the stereo audio patch cable that came with your ET312B to the “Audio” jack on the front panel.
  • Connect the other end of the cable to your iPod or computer’s headphone output.
  • Set each output level on the ET312 to a minimum.
  • Set the MA control to 12 o’clock.
  • Press the [UP] button several times until  “Audio 3” is displayed.
  • Press [PLAY] on your iPod or iTunes player to start the audio track.
  • You should see the red LEDs flashing for each channel as the track plays.
  • Adjust the MA control so that the LEDs flicker without being off or on all the time (you can adjust this during e-stim too)
  • Slowly increase the output levels for A and B until you begin to feel the stim
  • Adjust the MA control as needed to match the output level of your music player or computer.

A little involved? Yes. But worth it? Definitely. I’ll add some pictures and a video showing the steps illustrated above in a later post. Now, I have to test some of those new tracks I found and write about my results. Stay tuned.

Stereo-Stim files worth trying

I’ve been very happy with the efforts of one SmartStim contributor lately. Very happy.

He goes by the name of “Mr. Terminator” on SmartStim and “naughtyelectrons” on mediafire.com and has produced some of the smoothest audio files made for the ET312B that I’ve stimmed with so far. I know that by saying this, I risk offending other erotic sound designers. It’s just that I haven’t tried every single file out there, but I have found a suite that I like very much. (Yes, my cock, balls and ass like them a lot too. 🙂

waveform

If you already have an ET312B and know how to feed audio from iTunes or some other mp3 player into it, here’s the link to his files:

naughtyelectron’s MP3 Stim Files

I especially like the Pulsinator Suite.

If you want to know more about using your stereo, computer, or iPod to make electrical waves you can shoot your load to, check out my post:  stereo-stimming-with-your-erostek-et312b