我用1945、1971直接代替,很好用!都是中央脚散热接地。
2sc2509
silicon npn transistor
final rf power output
description:
the 2sc2509 is a silicon npn epitaxial planer type transistor designed for rf power amplifiers on hf band mobile radio applications.
wintransceiver
features:
high power gain: gpe >/= 12db (vcc = 12v, po = 16w, f = 27mhz)
ability to withstand infinite vswr load when operated at:
vcc = 16v, po = 20w, f = 27mhz