Mike, I am on old TV radio/tech repair for RCA and Zenith, so understandig the voltage is not the question I had. What I am refereing to, is take for example, I have a 200 watt amplifier that came from the factory with 6 guage wire on it, much like the kids that is buying the 4 guage wire to run the 200 watt class D amps for the deep sub, were talking about how they accomplish 1/2 KW with all small wires. You would not wire your 220 amp with such small wires. I'm just curious how they can handle the amps with such small wires. Where is the big leads. Example, to the 10 watt exciter, they have 12 guage wires, why would they not have something like that going to such a high voltage amp. Thats is all that I am curious about. Much like the 35kv carrier for a tube was 14 guage wire with a heavy insulator around it.
I understand your concerns, and trust me, I am in no way interested in getting shocked not to mention, I hate it when that happens. I just am trying to concept why they use such small wires with nothing larger to carry the amperage much like a standard 25 watt radio would for two meters. Mathew --- In [email protected], Mike Morris WA6ILQ <[EMAIL PROTECTED]> wrote: > > At 05:43 PM 09/03/08, you wrote: > >Now just a more curious point, something I guess I just don't grasp, > >but all the wires going up to the PA are 18 guage or less wires, it > >would seem to me that with such high power output that it would have > >at least a few larger wires at least of the 12 guage or better. How > >do they accomplish this with such a small set of wires? > > This is the kind of comment that worries the old farts. > > 20ga wire can carry an amp. > 18 ga can carry at least three amps. > > The UHF Micor amp book (the only high power book I have > handy) says that the final amp runs at 1,500 volts at up to > 400 mils. > > That's 4/10 of an amp. 1/10 can kill you if it's applied right. > > 1500v can ruin your survivors entire day. > > Do I have to say it? WATCH OUT FOR THE HIGH VOLTAGE. > > If you don't have experience with it DON'T WORK ALONE. > > There's a reason they used to tell the old techs to keep > one hand in their pocket - it prevented getting a lethal > level of current from hot (one hand) to ground (the other > hand) and incidentally through the chest. The heart muscle > does it's thing with millivolts and milliamps. > > Matt, I don't mean to be insulting, or demeaning your skills, > but this is YOUR LIFE we are talking about. > > If I were in your shoes when ever I was going to have my > hands inside that beast with the power on I'd have a > second person in the room, even if they were sitting in a > chair across the room and studying a textbook. > Or watching TV. > > Show them what switch to flip off (or better yet what power > cord to unplug) before they drag your ass out of the cabinet > and begin practicing their CPR skills. > > Mike WA6ILQ >
