EA3GCY EGV-9B v1, Assembly Manual

Page: 9 / 35

EGV-9B
80 to 10m QRP CW Transceiver Kit Page 9
Semiconductors
Checked Ref. Type Ident./Comment Circuit section Located
Transistors
Q1 BC547 BC547 Keyer K-5
Q2 BC547 BC547 Switches N-5
Q3 BC547 BC547 Switches N-12
Q4 BD140 BD140 CW TX key J-1
Q5 BD135 BD135 Driver J-3/4
Q6 2SC1969 C1969 Out. Amp. G-2
Q7 BC547 BC547 AGC D-12
Q8 2N7000 2N7000 AGC G-12
Q9 2N7000 2N7000 AGC G-12
Q10 BC547 BC547 S-Meter Q-14
Q11 BC547 BC547 Audio mute C/D-14
Q12 BC547 BC547 Band switches G-5
Q13 BC547 BC547 Band switches G-6
Q14 BC547 BC547 Band switches G-7
Q15 BC547 BC547 Band switches G-7/8
Q16 BC547 BC547 Band switches G-8
Q17 BC547 BC547 Band switches G-9
IC's
IC1 78L05 78L05 Keyer K-4
IC2 KB-2 CW keyer 12F1840 KB-2Keyer L-4
IC3 LM386 LM386 Sidetone N-2
IC4 78L05 78L05 AGC G-13
IC5 NE602 NE602 or SA602 RX mixer L-8
IC6 NE602 NE602 or SA602 CW Dem N-10
IC7 UA741 741 Audio Premp. K-11
IC8 LM386 LM386 AudioAmp. M-13
IC9 CD74HC238 HC238 And switches I-7
IC10 7809 7809 Digital supply P/Q-10
IC11 7805 7805 Digital supply R-9
IC12 SI5351 Module SI5351 Signals generator P-8/9
IC13 OLED display 1.3” display Display R-2/3
IC14 ATMEGA328 module
ATMEGA328 module or
Arduino NANO
Micro-controller Q-3/4
Diodes
Printed “D”
All diodes printed “D” on PCB are 1N4148
Identified as 4148
-- --
D1 47V 1W zener 47V or 1N4756 Output Amp. F-2
D2 6V2 zener 6V2 or 1N5234 NE602 supply K-10
D3 BY255 BY255 VCC protect A/B-4
Inductors/RF Transformers/Relay
Checked Ref. Value/Type Ident./Comment Circuit section Located
L1 FT37-43 Toroid 3-10 turns G/H-3
L2 FT37-43 Toroid 8+8 turns F-3/4
Relays
RL1 RL1a/b Huigang HRS2H 12V C/D-3
RL2 RL2 Omron G5V-1 12V N/O-13