Showing posts with label 20w. Show all posts
Showing posts with label 20w. Show all posts
Friday, April 5, 2013
RF Fm 88 108 MHz 20W amplifier
This Fm rf power amplifier has 2 transistors from Philips : BLV 10 and BLW 87. The 2 rf transistors work in class C and this fm amplifier has a total gain of 21dB ( 100 X ) and efficiency 55 – 65%.
One low pass filter with 9 components ensures 60dB rejection on the second harmonic. There is no need for tune-up to cover the whole 88 – 108 MHz FM frequencies.
source [link]
One low pass filter with 9 components ensures 60dB rejection on the second harmonic. There is no need for tune-up to cover the whole 88 – 108 MHz FM frequencies.
source [link]
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