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Quantity
Comment
1
500R vertical multi turn trimpot
1
20K horizontal trimpot
10
1N4148 signal diode
1
1N4004 1A power diode
1
9.1V 0.5W Zener diode
4
6.8V 0.5W Zener diode
6
2N3904 NPN transistor
1
2N7000 MOSFET
1
BD139 NPN transistor
1
IRF510 Power MOSFET
3
SA612 RF mixer amp
1
NE5534 low noise op-amp
1
LM386N-4 audio power amp
5
10MHz HC49 crystal
1
DPDT DIP relay 12V coil
1
FT37-43 4 turns: 3 turns 0.5mm
42IF123 10.7MHz IF
4
Transformer
FT37-43 10 turns: 3 turns
1
0.5mm
1
FT37-43 8 turns bifilar 0.25mm
BN-43-202
1
2 turns: 5 turns 0.5mm
2
PCB pin 1mm
6
2 pin 2.54mm pitch header
1
3 pin 2.54mm pitch header
1
2 way term block 5.08mm pitch
15mm long 3mm dia heat
2
shrink
0.5mm enamelled copper wire
0.25mm enamelled copper wire
MST Construction Manual – Issue 1
Designator
VR1
VR2
D1, D2, D3, D4, D5, D6, D7, D8, D9, D11
D10
ZD1
ZD2, ZD3, ZD4, ZD5
Q1, Q2, Q3, Q4, Q8, Q9
Q5
Q6
Q7
U1, U2, U5
U3
U4
X1, X2, X3, X4, X5
K1
T1
T2, T3, T7, T8
T4
T5
T6
P1 (ANT), P2 (GND)
SK1 (MIC), SK2 (SPKR), SK4 (PTT), SK5 (RF), SK6
(VFO), SK7 (AUX)
SK3 (AF GAIN)
TB1 (POWER)
Page 15
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