 There's the little circuit I'm working on, it's a 555 timer chip in there, there's a couple of IRF840 MOSFETs, just sat there and that there, so I'm going to adjust the frequency, I think this is an A-stable multibrow operator thing and anyway, so what we've got basically is why just connect on to my power supply we've got ourselves another power inverter you can see the frequency there, the inverter and the non-inverted square wave outputs there's a little bit of a difference on the voltages, probably have to mess around with the resistors a little bit but as you can see the average and the maximums are pretty close so there's nothing on the MOSFETs at the minute, but I did leave it on I can tell they're not cold, if I touch them they're not cold but they're not warm by any stretching imagination but then I wouldn't expect so I expect that my actual power supply over here has been pulled down from 11 volts it's probably feeling the brunt more than these MOSFETs so I can make the bulb a little bit brighter, that's only a 6 watt, it's a 6 watt 50-60 hertz bulb there nothing special, I did try my tungsten 40 watt bulb it really didn't like it, when I turned it up to 14 and a half volts, yeah but really that's pushing that 555 timer to the limit I think what we need to do is split up the power so we've got power to the timer and separate that off and rather powering these MOSFETs with the same power we'll go to the timer, have a different power for that I think I've said it already, but if I didn't this is a mix and match from three other dual MOSFET 555 timer circuits because I was struggling trying to get the frequency so on my one I've got the 840s, the IRF 840s, I've got a 2N222 transistor here which just stops on both from switching on and off at the same time when one's on, this one's on this pulls the other one basically down to ground and then when that one goes off, that one comes on it's far more than standard works but to use this is 80 nanofarads here it's a 47 and a 33 because I can just try and get the frequency down because it kept sitting 60, 64 trying to get it down to 50 hertz and then range between 50 and 60 hertz is fine but it works and I hope that you've managed to see everything that I wasn't poking the camera you know, up at the sky or something so yeah, I think my toroid there is probably a bit heavy duty for this but that's the only one that I've got which has got two 12 volt secondaries on it the other little transformer I've got has only got 9 volt secondaries on it and the other toroid that I have has got 24 volt secondaries on it so it seems like a bit of an overkill it's absolutely silent like that, can't hear a thing I've not tried other bulbs on it, it's such a part from the one tungsten which I mentioned and that didn't really work very well but this seems to be okay like that I suppose if I was ever in a fix now, do all these parts with me I'd be happy to build something to get out the fix anyway I'm going to class that as a bit of a success I may work on it a bit more, I may try different yeah, just different configuration components slight differences, see what differences they make I do realise that I can't, there's not a lot I can do with the frequency anymore because I spent hours trying to get exactly 50 hertz and the voltages on these to keep these balanced that's all going to stay what I've got it to now but I will draw up a schematic of what I've used I do appreciate that everyone's going to be slightly different on these things and I'll put it into the description it may not be tonight but it will be in the next day or two then I'll do that before I tear it down so anyway, have you got this vouchers watching guys and talk to you soon