САЙТ РАДИОЛЮБИТЕЛЕЙ ВОЛГОГРАДА RA4A.  QRP.


 

TX на 7.0 MHz. 5W.

 
 
R1   5.6K Resistor (Green, Blue, Red) ¼ watt
R2   15K Resistor (Brown, Green, Orange) ¼ watt
R3   2.2K Resistor (Red, Red, Red) ¼ watt
R4,R8   1K Resistor (Brown, Black, Red) ¼ watt
R5   4.7K Resistor (Yellow, Violet, Red) ¼ watt
R6   22 ohm Resistor (Red, Red, Black) ¼ watt
R7,R9   10K Resistor (Brown, Black, Orange) ¼ watt
R10   10K Trimmer pot, ¼ watt or larger
C1   .01uf Ceramic disk capacitor
C2,C4,C6,C9   .1uf Ceramic disk capacitor
C3   .0028uf Ceramic disk capacitor (Use two .001uf capacitors and one 820pf capacitor in parallel.)
C5   68pf Ceramic disk capacitor
C7,C10   .001uf Ceramic disk capacitor
C8   100uf electrolytic capacitor. (observe polarity)
C11,C13   390pf Silver Mica capacitor
C12   820pf Silver Mica capacitor
D1   15 volt Zener diode. 1N4744 or similar.
Y1   7.040 MHz or 7.122 Mhz crystal
T1   T50-2 toroid. 34 turns #26 wire for primary. 6 turns #22 wire for secondary.
T2   FT37-43 toroid. 14 turns #26 wire for primary. 4 turns #22 wire for secondary.
L1   T68-2 toroid. 10 turns #22 wire.
L2,L3   T37-2 toroid. 16 turns #26 wire.
Q1   2N3906 transistor
Q2   2N3904 transistor
Q3   2N3053 transistor. Must use TO-39 or similar type heat sink.
Q4   IRF510 Power Mosfet transistor. Must use TO-220 heat sink(276-1363).
S1   Any suitable SPDT switch

 

 


НА ГЛАВНУЮ. / ТЕХПОРТАЛ / QRP


Используются технологии uCoz