150 Watts BLF177 FM broadcast (87,5-108MHz) RF-broadband amplifier
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 The amplifier requires max. 8 Watts rf-drive to deliver 150 Watts output power.
 Supply voltage : 50 Volts, adjust bias to approx. 1,8 Volts.


 CuAg = silver plated copper wire
 CuL = magnetwire, enameled copper wire
 (Note: 1 mm CuL equals approx. to AWG18
          0,3 mm equals approx. to AWG28)

 (I)   all diameters are measured from the inside of the coils
 (II)  make sure to mount the rf-transistor on a appropriate heatsink and use some thermal
       heatsink compound between the stud of the rf-transistor and the heatsink!
       (Thermal resistance heatsink at least 6°C/W.)
 (III) all parts are soldered directly on the toplayer of the pcb
 (IV)  connect the bottomlayer to the groundplane on the toplayer!

 (C)2005 Helix Inc. The Netherlands.