Projenin Adı: 2W 88-108mhz TX with PLL Input
Projenin Yayınlandığı Tarih: 7 May 2013 02:15 PM
L1 = 4 Turns Air coil, internal diameter 8 mm, 1 mm CuL (approx. #18 A.W.G.), wirespacing 1 mm - the 1uH and 2.2uH coils are ready-made molded type coils - all 'square' drawn capacitors are MKT or MKP-types, the rest are (multilayer) ceramic ones - all resistors 0.25 Watts, unless otherwise indicated - the 470-Ohms trimmer resistor is from the brand Piher, horizontal mount, 10 mm diameter - the BF960 mosfet and the BFR96(S) transistor are mounted at the bottomside (copperside/ trackside) of the printed circuitboard - be sure to use an appropriate heatsink on the 2N4427 rf-transistor! - the PLL-input accepts a (stabilized and filtered) control voltage of 0-12 Volts DC for the desired frequency variation or can be connected to an individual synthesizer.
PCB üst yüz
PCB Üst Yüz
ViProje 2W 88-108mhz TX with PLL Input