"Factoids," "Kirt's Cogitations," and
"Tech Topics Smorgasbord"
are all manifestations of my rantings on various subjects relevant (usually) to
the overall RF Cafe theme. All may be accessed on these pages:
Paint Brushes 101. The most predominant
source of natural brush fibers is hog bristle or ox hair (from inside the ox's ear).
Tampico fibers and badger hair are used to a lesser extent. Synthetic fibers, called
filaments, are composed of nylon and polyester. China is the leading exporter hog
bristle, or "China brushes," hence the name. Natural fiber brushes are best suited
for achieving extremely smooth, glass-like finishes. Use synthetic filaments brushes
for oil- and water-based paints. Excluding the myriad of artists brushes, there
is an extensive selection of brush types at your local hardware store, including
coarse and fine stucco brushes, ultra firm synthetic for hot and humid weather,
angled trim brushes, long reach for ceilings, angled radiator brushes, sash, square-end,
double-taper, and even auto enamel brushes (who does that?). Class dismissed.
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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