[Tutorial] Building your own DIY E-Stim Stereo Device

[Mistypanda22]

if there is indeed a good enough current going through it, why cant i feel it on my leg for instance?

I'm not recommending you do this, but it is what I do.

With both electrodes (are they metal or conductive rubber?) on the same leg and with a conductive gel (salt water can work too) see if you can feel something as you turn up the volume. Having a good steady source like one of the calibration routines found in the various web teases would work. It may take more power and I'm always sure I have the ability to quickly kill the power.

I usually set the computer volume low, and the amp at 25% and work my way up.

they are rubber. i know voltage at the very least passes through them, but pressing them onto my leg and fiddling with the sound and calibration, i didnt feel anything

[picofarad]

they are rubber. i know voltage at the very least passes through them, but pressing them onto my leg and fiddling with the sound and calibration, i didnt feel anything

They are high resistance and as such I almost never use them. It takes a lot more power to feel a sensation through them. Nevertheless, I'm surprised you're not feeling anything when the power is turned up on your source and on the amp.

One thing you can do, assuming you have a good multimeter. First, measure the resistance from the wire to the rubber pad.
Next, with both pads on the same leg, and have them close but not touching, measure the resistance (at the leads). It may be high, but you should get a reading, if not use a damp, green scouring pad on your skin to get off the dead skin and then try measuring again. If it infinite, then the pads are really not working as electrodes. Almost all my electrodes are metal, and I always use a conductive gel.

[Mistypanda22]

they are rubber. i know voltage at the very least passes through them, but pressing them onto my leg and fiddling with the sound and calibration, i didnt feel anything

They are high resistance and as such I almost never use them. It takes a lot more power to feel a sensation through them. Nevertheless, I'm surprised you're not feeling anything when the power is turned up on your source and on the amp.

One thing you can do, assuming you have a good multimeter. First, measure the resistance from the wire to the rubber pad.
Next, with both pads on the same leg, and have them close but not touching, measure the resistance (at the leads). It may be high, but you should get a reading, if not use a damp, green scouring pad on your skin to get off the dead skin and then try measuring again. If it infinite, then the pads are really not working as electrodes. Almost all my electrodes are metal, and I always use a conductive gel.

i just tested the resistance of the rubber leads themselves and while the wire is somewhere around .3 ohms, the rubber leads are a whopping 75K ohms i think.

what kind of electrodes do you recommend? ones that are preferably reusable. i defaulted to these rubber leads simply because i knew they were generally reusable, but moreso because they were just lying around the house (unfortunately i bet these leads are well over 4 years old, so it wouldn't be surprising if THEY were my problem). if there's a better alternative that is also plenty reusable (I'm not to fond of those gel pads or whatever), i would love to try it out instead

[picofarad]

what kind of electrodes do you recommend?

Depends on placement. As to material I prefer Aluminum, cooper, stainless steel. No chrome or nickel.
Lately, I find a stainless-steel urethra sound to be a great electrode, but many do not want to try that. I find a bronze grounding clamp to be excellent for the scrotum. You can't beat dual butt probes; Mr. S has a very good selection. For thigh electrodes one can go to the hardware store and get 10' of coiled 1/4" copper refrigerator tubing. Very flexible and a good choice for the common (-) electrode.

Spoiler: show

https://www.amazon.com/Industries-G-2-S ... B013IDBHFC

Spoiler: show

https://www.amazon.com/KWOKWEI-Refriger ... MRLPR?th=1

[wmounted]

I'm nearly finished assembling my powerbox, but i could use some help in verifying that all the wiring is correct.
I underestimated the size of resistors, resulting in a tightly packed and messy setup. I had to remove some parts from the case for the attached photo.

1.jpg (608.71 KiB) Viewed 10321 times

I'm using a transformer from Parts Express, and I noticed it has the 70V 0.62W tap on the same side where the amplifier connects. Can you confirm if this is correct?
Here's the link to the transformer:
https://www.parts-express.com/70V-10W-L ... quantity=1

Additionally, I measured the 3.9 ohm resistors with a cheap multimeter, and they're reading around 4.7 ohms. Should I be concerned about this ?

Lastly, I'd appreciate some recommendations for audio files to help me get started.

[wmounted]

I'm nearly finished assembling my powerbox, but i could use some help in verifying that all the wiring is correct.
I underestimated the size of resistors, resulting in a tightly packed and messy setup. I had to remove some parts from the case for the attached photo.
1.jpg


I'm using a transformer from Parts Express, and I noticed it has the 70V 0.62W tap on the same side where the amplifier connects. Can you confirm if this is correct?
Here's the link to the transformer:
https://www.parts-express.com/70V-10W-L ... quantity=1

Additionally, I measured the 3.9 ohm resistors with a cheap multimeter, and they're reading around 4.7 ohms. Should I be concerned about this ?

Lastly, I'd appreciate some recommendations for audio files to help me get started.

So, I decided to give it a test run. First, I tried it out on one of my legs. As soon as I flipped the switch, I got quite a jolt that nearly lifted my leg off the ground. Luckily, I have separate switches for power and electrodes. Maybe if I had a single toggle switch like the one in the diagram, this wouldn't have happened. Anyway, I quickly solved it by turning on the power switch while the electrodes switch was off, and vice versa before cutting power to the unit.

I started with the volume knob at its lowest position and gradually turned it up. I could only rotate it less than a quarter of the way before it started feeling like I was getting shocked.

After ensuring it was safe to use on low volume, I tried it on my penis. Interestingly, it seemed like my penis could handle more electricity than my leg. I could turn the volume knob at least a quarter of the way, but any more than that, and it felt like I was getting shocked (depending on the audio file). Is this normal? I used rubber loops and water-based lube, didn't have much stinging.

The main issue I encountered during my estim session was the intensity jumping from almost nothing to very intense power whenever there was a significant change in amplitude on the audio file. I tried several files from the StimAddict's archive, but I had the same problem with all of them. I had to consistently adjust the volume knob to enjoy it. I found it hard to maintain an erection during my hour and a half session, maybe I had one for only about 10 minutes. Even that probably thanks to visual simulation.

After my experience, I have to say it felt exactly like what it is: getting electrocuted on the penis. I didn't enjoy it much, and I don't think I'll be trying it again for a while.

One more thing, once I was adjusting one of the silicone loop electrodes and accidentally dropped it. When I immediately tried to pick it up (IK this was very dumb, i did it instinctively), boy, I couldn't hold onto it; it was giving me very intense electric shocks. Is this normal if you touch a single electrode without it being connected to the body?

[Electro]

I started with the volume knob at its lowest position and gradually turned it up. I could only rotate it less than a quarter of the way before it started feeling like I was getting shocked.

After ensuring it was safe to use on low volume, I tried it on my penis. Interestingly, it seemed like my penis could handle more electricity than my leg. I could turn the volume knob at least a quarter of the way, but any more than that, and it felt like I was getting shocked (depending on the audio file). Is this normal? I used rubber loops and water-based lube, didn't have much stinging.

The main issue I encountered during my estim session was the intensity jumping from almost nothing to very intense power whenever there was a significant change in amplitude on the audio file. I tried several files from the StimAddict's archive, but I had the same problem with all of them. I had to consistently adjust the volume knob to enjoy it. I found it hard to maintain an erection during my hour and a half session, maybe I had one for only about 10 minutes. Even that probably thanks to visual simulation.

After my experience, I have to say it felt exactly like what it is: getting electrocuted on the penis. I didn't enjoy it much, and I don't think I'll be trying it again for a while.

One more thing, once I was adjusting one of the silicone loop electrodes and accidentally dropped it. When I immediately tried to pick it up (IK this was very dumb, i did it instinctively), boy, I couldn't hold onto it; it was giving me very intense electric shocks. Is this normal if you touch a single electrode without it being connected to the body?

Something sounds not quite right. There are plenty of variables that can change the experience with Estim and there are plenty of unknowns of your described experience that make it difficult to comment on.

I personally don't use standard water-based lube for electrodes on the penis because the five types I've tried, I found the conductivity sucks and it has a very prickly and stingy feeling and they all get sticky when they dry up. If you are in the US, you can get a 2 pack of Spectra360 for about $10 or a 5 pack for about $22(just a year ago it was still $20, but it's not 2020 anymore). I use this everywhere that's not internal because it doesn't get sticky and it's cheaper than almost any brand of lube.

Electrode placement is important, I'm assuming you started with two electrode loops connected to a single channel. If you are placing one around the corona and another near the base, insulate the top half of the loop for the one at the base. If you don't the dorsal nerve gets stimulated in two places and is uncomfortable. I usually use a loop forward of the balls instead of behind the balls to avoid stimulating the back of the balls, with some experience, you might be okay with this though.

Files - I have no idea which files you are using, that giant archive has lots of good stuff, but also there's a bunch of stuff designed for the 2B, the ET312B, and other devices where the volume range, frequency, or waveform type might not be suitable for an amplifier based device. ..plus some might be designed for a 'spicy' experience.

Regarding your leg or hand - yes, the leg and especially the hand will feel much more intense, but also I've never been able to get a pleasurable experience stimming anywhere else, although I'd be interested to know if anyone managed for that to be the case.

The sensation shouldn't feel like you are being shocked, starting with a low volume, it should be set to a subtle level and a low intensity and should feel similar to the intensity of a vibrator if it were sandwiches beneath the skin.

Try using the Estim Clinic webtease with the single channel, set the computer volume lower (try 40%, but this will vary between devices) so you have more movement on the amplifier volume control and choose the option to select a person and choose Rachael to start. Most sensations should feel like a very slow grippy pulse, if it hurts, turn it down until it's comfortable.

I'm still thinking you need the Spectra360, but if you have TENS pads, you don't need lube for those and you could try that instead.

[wmounted]

Something sounds not quite right. There are plenty of variables that can change the experience with Estim and there are plenty of unknowns of your described experience that make it difficult to comment on.

I personally don't use standard water-based lube for electrodes on the penis because the five types I've tried, I found the conductivity sucks and it has a very prickly and stingy feeling and they all get sticky when they dry up. If you are in the US, you can get a 2 pack of Spectra360 for about $10 or a 5 pack for about $22(just a year ago it was still $20, but it's not 2020 anymore). I use this everywhere that's not internal because it doesn't get sticky and it's cheaper than almost any brand of lube.

Electrode placement is important, I'm assuming you started with two electrode loops connected to a single channel. If you are placing one around the corona and another near the base, insulate the top half of the loop for the one at the base. If you don't the dorsal nerve gets stimulated in two places and is uncomfortable. I usually use a loop forward of the balls instead of behind the balls to avoid stimulating the back of the balls, with some experience, you might be okay with this though.

Files - I have no idea which files you are using, that giant archive has lots of good stuff, but also there's a bunch of stuff designed for the 2B, the ET312B, and other devices where the volume range, frequency, or waveform type might not be suitable for an amplifier based device. ..plus some might be designed for a 'spicy' experience.

Regarding your leg or hand - yes, the leg and especially the hand will feel much more intense, but also I've never been able to get a pleasurable experience stimming anywhere else, although I'd be interested to know if anyone managed for that to be the case.

The sensation shouldn't feel like you are being shocked, starting with a low volume, it should be set to a subtle level and a low intensity and should feel similar to the intensity of a vibrator if it were sandwiches beneath the skin.

Try using the Estim Clinic webtease with the single channel, set the computer volume lower (try 40%, but this will vary between devices) so you have more movement on the amplifier volume control and choose the option to select a person and choose Rachael to start. Most sensations should feel like a very slow grippy pulse, if it hurts, turn it down until it's comfortable.

I'm still thinking you need the Spectra360, but if you have TENS pads, you don't need lube for those and you could try that instead.

Thanks for the detailed reply! tbh, i was a bit scared after that incident with my hand, because it gave very powerful shocks to my hand, it made me worried for my penis. Your reply eases my mind.

Unfortunately, Spectra360 ain't something I can get here. I stumbled upon something called ECG supergel, though. It's supposed to be good for ECG recording, EEG, and defibrillation. do you think it's worth a shot?

I tried adding a pinch of salt to boost conductivity, but didn't notice much difference.

For the electrodes, Yes I used a single channel (right channel), with one around the corona (R+) and the other near the base forward of the balls (R-), But i didn't cover the top half of the electrode. I will definitely cover it next time. Not sure if it matters, but I'm not circumcised, so the electrode was sitting on my foreskin.

As for the audio files, I was using the following from the archive:
Electrodick - Try Me
Fallen angel's duality
Dr Orgasm's Alien genital abduction
Fallen angel's kiss-of-venus

Thanks for pointing me to the webtease and the volume tips. I'm new to all this, never used webtease before. You mean this one, right? https://milovana.com/webteases/showtease.php?id=33079

I'll give it another try in a couple of days. Right now, I'm keeping a close eye on my penis to make sure everything remains normal. So far, so good.

Thanks again for the help!

[Electro]

Thanks for the detailed reply! tbh, i was a bit scared after that incident with my hand, because it gave very powerful shocks to my hand, it made me worried for my Unfortunately, Spectra360 ain't something I can get here. I stumbled upon something called ECG supergel, though. It's supposed to be good for ECG recording, EEG, and defibrillation. do you think it's worth a shot?

Spectra360 is a product designed for ECG, TENS, and electrical monitoring. It's not approved for defibrillator use, but otherwise it sounds similar. I venture a guess that it's similar enough. I know E-Stim Systems also sells an electrogel, they are based in UK, so depends on if shipping costs are reasonable to where you live if that's feasible to try.

For the electrodes, Yes I used a single channel (right channel), with one around the corona (R+) and the other near the base forward of the balls (R-), But i didn't cover the top half of the electrode. I will definitely cover it next time. Not sure if it matters, but I'm not circumcised, so the electrode was sitting on my foreskin.

Can't speak to the foreskin part, maybe someone else can speak to whether or not being over or under where the foreskin is normally feels better when starting out. Perhaps try one and then the other with low intensity to see if one feels better than the other for you.

As for the audio files, I was using the following from the archive:
Electrodick - Try Me
Fallen angel's duality
Dr Orgasm's Alien genital abduction
Fallen angel's kiss-of-venus

I don't know about try me and I can't remember which file Dr Orgasm plagiarized without credit and renamed to be alien genital abduction.
For those two Fallen Angel files, I believe the left channel would be the best channel for the penis, at least I know for Duality the right channel was intended to be for an anal electrode.

Thanks for pointing me to the webtease and the volume tips. I'm new to all this, never used webtease before. You mean this one, right? https://milovana.com/webteases/showtease.php?id=33079

yes, it's intended for the left channel to be the penis electrode. Ignore the "turn it as high as you can go" suggestion, set it so it's comfortable and if in the first few minutes in it feels uncomfortable, turn it down just enough until it is comfortable. If you click "skip ahead", you can click Rachel. Otherwise the same stim files are in Stimaddicts archive under a folder called tintin119, it has files labeled things like "masturbating" and "brunette" because those were the internal filenames of the description of the specific options. I don't remember which is which exactly, but I think the painful ones are named in an obvious way, something like cop, pain, or whip are the ones to skip.

I'll give it another try in a couple of days. Right now, I'm keeping a close eye on my penis to make sure everything remains normal. So far, so good.

Thanks again for the help!

Should be fine as long as you aren't seeing any blisters or other signs of a skin burn from bad conductivity or "hot spots", it's not uncommon to feel a little numb for a short while after stimming, usually goes away after a few hours unless stimming very intensely and/or the electrode placement wasn't great or things got a little too loose or dry.

[Dolgian]

For the electrodes, Yes I used a single channel (right channel), with one around the corona (R+) and the other near the base forward of the balls (R-), But i didn't cover the top half of the electrode. I will definitely cover it next time. Not sure if it matters, but I'm not circumcised, so the electrode was sitting on my foreskin.

I recommend using pads, I started like you with loops, but you must lube them every 15 mins or so, or else they tend to eat up and get unconfortable. I am also not sircumcised, dont put the trode over your foreskin, it will not be pleasant.
for real, just buy a bunch of pads, change them every month, I can go for 1-2h sessions without any heating problems.
Also, get a plug, maybe you are not confortable getting something in there, but it is really the best thing youll ever feel.
good luck!

[darthjj]

I'm using a transformer from Parts Express, and I noticed it has the 70V 0.62W tap on the same side where the amplifier connects. Can you confirm if this is correct?
Here's the link to the transformer:
https://www.parts-express.com/70V-10W-L ... quantity=1

Additionally, I measured the 3.9 ohm resistors with a cheap multimeter, and they're reading around 4.7 ohms. Should I be concerned about this ?

Lastly, I'd appreciate some recommendations for audio files to help me get started.

I have a different line audio transformer, but I would assume you can trust the labelling on it. Which taps have you connected to the electrodes now?

Mine is secondary COM + 8 Ohm on the amplifier side, and primary COM + 1.25W on the electrode side. As for general troubleshooting, it looks like you might have a DIY volume control on the box? Double check that it is working as intended after you have checked the transformer wirings.

As for signals, get a software signal generator and set it to 1000Hz sine wave.

Unfortunately I can't check now, but I have a vague memory of measuring around 100V on the electrode outputs with a voltmeter set to AC mode. I.e for the open circuit, Though it drops significantly when the electrodes are connected to a human body.

I think I also measured AC current to around 10mA when it was hooked up. I wouldn't try measuring current without also having a body in the loop, since otherwise you're more or less short-circuiting the box. It'll probably survive that, at least for a shorter time, but I wouldn't risk it.

[wmounted]

I have a different line audio transformer, but I would assume you can trust the labelling on it. Which taps have you connected to the electrodes now?

The amp is connected to COM and 8 Ohm on the secondary side, and the electrodes are connected to COM and 70V 0.62W on the primary side. (The 70V 0.62 tap is physically on the same as the secondary COM and 8 Ohm. You can see it in the following images.)

Spoiler: show

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300-040_ALT_0.jpg (78.84 KiB) Viewed 11548 times

Mine is secondary COM + 8 Ohm on the amplifier side, and primary COM + 1.25W on the electrode side. As for general troubleshooting, it looks like you might have a DIY volume control on the box? Double check that it is working as intended after you have checked the transformer wirings.

The 10K ohms potentiometers for the volume control are working fine. I checked them with a multimeter and also after attaching electrodes to my body.

How do I check the transformer wiring with a multimeter to make sure they are working properly?

As for signals, get a software signal generator and set it to 1000Hz sine wave.

What software do you use ?

Unfortunately I can't check now, but I have a vague memory of measuring around 100V on the electrode outputs with a voltmeter set to AC mode. I.e for the open circuit, Though it drops significantly when the electrodes are connected to a human body.

I measured the electrode output voltage with a multimeter while an estim file is playing. The voltage fluctuated between ~60V and 1500V. As far as I understand, voltages of estim frequencies can't be accurately measured with a multimeter. The datasheet of the multimeter says: Frequency response: 45-400Hz (not sure if it can measure the voltage accurately even within this range when frequency consistently changes).

I think I also measured AC current to around 10mA when it was hooked up. I wouldn't try measuring current without also having a body in the loop, since otherwise you're more or less short-circuiting the box. It'll probably survive that, at least for a shorter time, but I wouldn't risk it.

How did you measure the current? Is it by connecting the multimeter in series with one of the electrodes?

Thank you for the detailed response!

[wmounted]

Spectra360 is a product designed for ECG, TENS, and electrical monitoring. It's not approved for defibrillator use, but otherwise it sounds similar. I venture a guess that it's similar enough. I know E-Stim Systems also sells an electrogel, they are based in UK, so depends on if shipping costs are reasonable to where you live if that's feasible to try.

Thank you so much for your reply! Your insights and suggestions have been incredibly helpful!

Unfortunately, the shipping costs for both of those products were too high for me. So, I went ahead and ordered the ECG supergel from a local store instead. Hoping it works out well.

Can't speak to the foreskin part, maybe someone else can speak to whether or not being over or under where the foreskin is normally feels better when starting out. Perhaps try one and then the other with low intensity to see if one feels better than the other for you.

I don't know about try me and I can't remember which file Dr Orgasm plagiarized without credit and renamed to be alien genital abduction.
For those two Fallen Angel files, I believe the left channel would be the best channel for the penis, at least I know for Duality the right channel was intended to be for an anal electrode.

yes, it's intended for the left channel to be the penis electrode. Ignore the "turn it as high as you can go" suggestion, set it so it's comfortable and if in the first few minutes in it feels uncomfortable, turn it down just enough until it is comfortable. If you click "skip ahead", you can click Rachel. Otherwise the same stim files are in Stimaddicts archive under a folder called tintin119, it has files labeled things like "masturbating" and "brunette" because those were the internal filenames of the description of the specific options. I don't remember which is which exactly, but I think the painful ones are named in an obvious way, something like cop, pain, or whip are the ones to skip.

Should be fine as long as you aren't seeing any blisters or other signs of a skin burn from bad conductivity or "hot spots", it's not uncommon to feel a little numb for a short while after stimming, usually goes away after a few hours unless stimming very intensely and/or the electrode placement wasn't great or things got a little too loose or dry.

I gave it another go with the webtease you suggested. and I have to say, this time it felt amazing. Starting with Rachel, and then automatically transitioning to Brooke, the experience was even better. The last part of Brooke almost made me cum, i wish if it had lasted 10 more seconds.

Then i was interrupted by someone rigging the door bell, but i'm glad they did. Because I noticed some tingling under the tip of my penis afterward. Initially, I thought it might have been due to numbness in that area, so I decided to take a shower to see if it would help. Even after 10 minutes, the tingling persisted, so I took a closer look and noticed bunch of very tiny dots or bubbles on the underside of the tip of my foreskin (only noticeable when retracted). I believe they may be blisters (although I've never had any before, so I'm not entirely sure). The skin texture in that area also look a little bit different. The tingling went away after 20 minutes or so. but almost 24 hours later, the tiny dots or bubbles are still there. Will they go away on their own? They're hardly visible, and I only noticed them because I inspected very closely.

Also, I'm pretty sure that area of my foreskin wasn't even in direct contact with the electrode. I just put electrode behind the corona and didn't retract the foreskin. But I have to completely retract the foreskin to see the damage, So it is the inside fold of the foreskin.

[diglet]

This signal generator is simple: https://electron.estim-emporium.net/. You can also try my software https://github.com/diglet48/restim, more complicated but the signals are more power efficiency and may cause less numbing and irritation.

Did you apply lube in that area? Not all 'normal' lubes are suitable for estim use. Some are chemically unstable and break down into harmful components when a voltage is applied. This can also happen with normal table salt, I've read one report where E535 (anticaking agent often used in table salt) broke down into nasty chemicals.

Since you already ordered some ECG gel, wait until it comes in and try again with that stuff?

[wmounted]

I recommend using pads, I started like you with loops, but you must lube them every 15 mins or so, or else they tend to eat up and get unconfortable. I am also not sircumcised, dont put the trode over your foreskin, it will not be pleasant.
for real, just buy a bunch of pads, change them every month, I can go for 1-2h sessions without any heating problems.
Also, get a plug, maybe you are not confortable getting something in there, but it is really the best thing youll ever feel.
good luck!

Thanks! I appreciate your reply!

Yeah, I wish I had started with pads. I never had a heating issue with silicone rings, but in my last session, I got a bunch of tiny blisters under my foreskin. I didn't feel any pain during the session, I only noticed them afterward. Could it be because of bad conductivity?

They're not painful or anything, but I won't be estiming until they are fully healed.

I had rings over my foreskin, and it wasn't painful or anything, in fact, it was quite pleasant. The only problem is I got blisters. Now I'm scared to put electrodes directly behind the glans, what if I get blisters on my glans? That would suck.

Also, I just ordered some pads from Aliexpress.

This signal generator is simple: https://electron.estim-emporium.net/. You can also try my software https://github.com/diglet48/restim, more complicated but the signals are more power efficiency and may cause less numbing and irritation.

Did you apply lube in that area? Not all 'normal' lubes are suitable for estim use. Some are chemically unstable and break down into harmful components when a voltage is applied. This can also happen with normal table salt, I've read one report where E535 (anticaking agent often used in table salt) broke down into nasty chemicals.

Since you already ordered some ECG gel, wait until it comes in and try again with that stuff?

Thank you! I'll give both tools a try next time.

Yeah, I'm definitely waiting for the ECG gel before touching that estim box again.

Yes, it's likely that the lube reached that area. I used Durex tingle lube with a bit of salt. The thought of them breaking down into harmful chemicals had crossed my mind, but I was too horny to let that stop me from estiming. Horny won!