Safer Electro ?? Hi there Folks, I posted for ideas on safer electro stimulation, and I had a number of replies, for which I thank you. At the suggestion of other members I had bought some Sony SPS-PC35's, which produced about 3 watts per channel. Geoff, from the Australian Group came up with an idea, which I have set up. It works quite well. He suggested that as I had now got some battery-powered speakers, it would take us away from mains power. Because I was unable to get the full effect of my .wav files, Geoff suggested that I needed to increase the output voltage from the Sony speaker amp and achieve a reasonable safety isolation at the same time using small "speaker transformers" wired in back to front. Geoff explained that further explanation was required before I tried this. The transformer needed is an RS210-6497. Price on the RS UK web page is �4.34 each. So I bought one to try it out first in mono, using only one channel from my PC speakers. The RS210-6497 is a 100volt line speaker transformer designed to step a 100volt industrial PA System speaker line down to 4volts, so as to deliver only 2watts into an 8ohm speaker. The specs claim a good frequency response in the range of 100Hz to 15KHz. The specs also claim 2,000 volt DC isolation from one side to the other, which is great news, safety wise, because dangerous DC burn currents can't get though. "Enough nerdy info!" I hear you say. OK, the important thing is that, when wired in reverse, this transformer will boost the VOLTAGE (thrill) from your small PC speakers by a factor of about 25, but without increasing the POWER (burn) capability of the signal. When you buy the transformer it will look like a block of iron, a bit bigger than a matchbox, with a plastic bobbin in the middle. There will be two solder tags on either side of the bobbin. (See photos) The side with the thicker wires coming out of the bobbin and going to the solder tags is the 8-ohm side. Cable these tags between ONE PC speaker channel (L or R, but not BOTH) and speaker Common. The metal frame of the transformer should also be connected to the speaker common for safety. That done, we now get to the fun side of the reversed speaker transformer. The 100 volt side will have much thinner wires coming out of the plastic bobbin going to the solder tags. This is where you connect the electrodes, to these two terminals ONLY. Do not allow the electrode wiring to touch the frame of the transformer. This wiring is meant to be isolated from ground on both sides. These two wires must go to your body contact probes, and that's all. For extra safety during play, and also to prevent damage to your PC speakers in case you inadvertently let the probes touch together at any time, I strongly recommend that you install 2200 ohm, 1-watt resistors (about 8 pence each) in series with both 100-volt line transformer solder tags. When using this set up, I did find that about 50% of my wav files did not produce the same effect as my Hi-Fi set up, they were a bit underpowered. In case you are unfamiliar with standard resistor colour coding, 2200 ohm resistors have three thin red bands painted near one end. The other end will have a gold, silver or brown/red band, and is not important. I would like to thank Geoff again for his help. And wish you all lots of electro fun. Happy stimming, Tom & Geoff ------------------------ Yahoo! Groups Sponsor --------------------~--> Ever feel sad or cry for no reason at all? Depression. Narrated by Kate Hudson. http://us.click.yahoo.com/Ntf6vA/esnJAA/d1hLAA/cQYolB/TM --------------------------------------------------------------------~-> ---------------------------"^..^"--------------------------- ------------------------ Yahoo! Groups Sponsor --------------------~--> Adult S e x Video Chatrooms - Free Registration! Sexy Girls! - Ask Them anything You Want To See! ----->>> http://www.adult-video-chat.sexis.hu <<<----- --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/electrosex/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
