I found that common gate or common emitter stages are really useful when pushing the noise figure on wideband amps. That's also how it is done in modern shortwave communication gear where frequency agility all but prohibits the use of tuned circuits.
Certainly. Restaurants can serve excellent burgers. Our favorite is Hangtown Brewpub in Placerville and you can get fabulous garlic fries and a fresh stout or ale with it. Around $8, plus the brew.
What I meant was barbequeing at home. The vast majority merely slaps some pre-pressed patties on the grill and that's what we never do. It is always from scratch.