 I'm just playing around with this little power supply that I'm building, this is my little linear type power supply, very very basic, really really basic, it's just going to have volume control and some amputation, it's disposal for now, but I'm just playing around anyway I'm seeing a different effect of having very little capacitance and I'm also just trying out rather than, because the LM317 is great but it's very temperature sensitive and so I thought as you can put a pass transistor on to handle the current that will stop if it doesn't have the current going through the LM317 that should stop a lot of the LM temperature problems and you know make it more stable and more usable like that if you're going to be putting any sort of current through it but of course then I've got to keep cool the transistor that I use, now I've opted for 235 in a TO3 package and I've connected it to this heatsink as I have it already and I've not just done one because I've done two in parallel and in fact I've done three but I've already connected two, I don't know if you can see that but it says 43 degrees on there, that's because at the minute I've got 29 volts, it's probably 33 volts really that's as high as I can go because one of those capacitors there is a 35 volt capacitor I think it's that one and if it goes pop well I'm sorry but and there's a load and the reason why I've used this is because you know I can't turn it up very high before it's like pulling a load of amps and what I'm trying to do really is just make sure that this can handle some so it's not a point serve and here it's not even got anything on the screen because this isn't turned up at all it's turned all the way off but as you can see out there it's already pulling well this is quite amazing because I think my transformer's only two and a half amps but you want to see something this as soon as I put the amperage if I just start turning it up gently there's now again a little bit of a little bit of a glow but it would not have enough power to put that up we've pulled down to 20 volts there temperature 44.5 and over here try sailing using two and a half amps which is really the limit I can go you know for my transformer but it doesn't seem to work like that because I can actually turn this up and I have them and so we've pulled down there to 17 we're up at 6.1 there a bit of a glow on showing that as the voltage actually on the bulb and the amperage this is connected here and this one is connected over here and I've got smoke coming so we need to send all that down because that's what happens these wires get really really really really hot and that bit of smoke comes up I just noticed a very small amount but it's enough there I don't want to switch it down a little bit down now I'm going to actually take the load off just by getting rid of that bit back up to 33 remember in that I've got a 35 volt capacitor with no load that's the voltage but the temperature even though the wire is yet still really hot to touch the temperature doesn't it doesn't go up because it's the currents going through these transistors and on this big old heat sink and two of them sharing that load as well and three of them will be showing the load that seems to work quite well now I've not put it on the oscilloscope to see what sort of ripple was going on there so I know it's going to look like a sine wave because I haven't got any input capacitance you know that's that's the best that I've got some on the way and we'll see how it works from there and also I'm going to get rid of this and just put a 240 volt 12 volt plus 12 volt you know two seconders of 12 volt and five amps 12 what is up five amps transformer there directly and come off 24 volts into this because I give me about 33 volts but this is a high voltage and then 317 I think you can get a 57 volt output with this that would be pretty good of course I normally have something on discharge capacitors get a nice spark I think that I won't get hurt I've got my hands on it hmm so that does work really well with the past transistors I've got those connected there's the emitters it's dead simple you just parallel input the collector of the output the base of the arm 317 and then you use the emitters of these as your positive output and have a ground connection voila simple to put a past transistor on our 317 and then you don't have to worry about any of the temperature issues well the issues that you get with the temperature with the 317 I could be wrong there could be a whole lot of other things I've missed completely but that's the way I see it is if that's going to be the problem to keep pulling over then if you're trying to push the ampage just don't get that to do it get that to keep a nice steady voltage and stuff and just put the current free transistors power transistors and a few on a big old heatsink that's the first bit to this I'm going to do another bit when I've got more capacitors I hope they come in real soon and another transformer to use I might do a couple of little snippets in between with these capacitors with another transformer and stick it up on then um xbox 360 supplies there wide in series yeah anyway cheers for watching if you want to like a bit of schematic of this it's very simple uh you just copy the data sheet basically and I'm going to put another capacitor on the outside of this and maybe another diode so if you need it there copy the data sheet and then just put the past transistors on like I said in in series and these transistors I'm using as well I'm going to call them sort of like semi sort of matched matched in the meaning of the debater for each of these the gain whatever you want to call it hfv um is pretty much the same like I think that's a 62 that's a 64 that's a 67 um out of the sort of like eight or nine of these things I've got they have the three closest ones together that's why I'm using them three okay cheers for watching and I'll catch you on the next part