基础知识3 [复制链接]

when you make a rf or if amplifier in your transmitter,and if you feel "this driver must make more 3db output, or else that cannot drive the final linear-amplifier". in that case, please make driver-transistor parallel like the figure. in some case the parallel transistor makes more output than the single of it

vout=(1.9n-0.7) volts [n=number of the led]

能不能先翻个面？