I'm talking as far as I can hear. I've ordered a bunch of parts and will be building a 100 watt amplifier. Well, that means I'll be talking farther than I can hear. So a preamp is on my todo list. My only experience with preamps was years ago on 11m and it was not a good experience. The preamp did a great job of making the s-meter go to S-8 and thats about all it did. I keep seeing noise figures in db and I'm wondering what that means. I presume the lower this number the better. How much gain is too much gain? Do those $19.95 kits on ebay and various web sites stand a chance of being worth the time/effort? Or should I plan on dropping some coin on a prebuilt unit? I'm going to be working my output power up in stages. Build and amp, run it for awhile, sell it off, roll the money into something bigger. Stop upgrading when interference becomes a problem. Knowing that I might reach the kilowatt level, what should I consider for switching? Are there any questions that I should be asking? I don't know what I don't know, ya know? Keep in mind that my station is very very very (and very) budget minded.