BFR91-BFR96(S)-2SC1971 6 Watts FM broadcast (87,5-108MHz) Profline Broadband RF-amplifier
All component values are drawn on the .comp and .silklayer bitmaps, with the following
exceptions;
1.- mount a ferroxcube bead (3 mm diameter, 5 mm length) over one of the wires of the 56E
resistor (i.e. the wire wich is connected to the base of the 2SC1971 rf-transistor)
2.- the 1uH and 4.7uH coils are ready-made molded type coils.
3.- resistor values are in Ohms, 0.25watts (carbon or metalfilm).
4.- the 47E adjustable resistor measures 10mm diameter, vertical mount (Piher).
5.- all capacitor are ceramic except the 10nF and 100nF ones, these are multilayer types.
6.- the two trimmer capacitors are 22pF, Green (Philips).
7.- the two 150E resistors (at the collector of the BFR96(S) are mounted vertically.
All component values are drawn on the .comp and .silklayer bitmaps, with the following
exceptions;
1.- mount a ferroxcube bead (3 mm diameter, 5 mm length) over one of the wires of the 56E
resistor (i.e. the wire wich is connected to the base of the 2SC1971 rf-transistor)
2.- the 1uH and 4.7uH coils are ready-made molded type coils.
3.- resistor values are in Ohms, 0.25watts (carbon or metalfilm).
4.- the 47E adjustable resistor measures 10mm diameter, vertical mount (Piher).
5.- all capacitor are ceramic except the 10nF and 100nF ones, these are multilayer types.
6.- the two trimmer capacitors are 22pF, Green (Philips).
7.- the two 150E resistors (at the collector of the BFR96(S) are mounted vertically.
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