QRP Labs QCX-mini Assembly Instructions

Qty Description Component numbers
1 SMD: Si5351A, 10-pin MSOP IC1
1 ATmega328, microcontroller IC2
1 SMD: 74ACT00N IC3
1 SMD: FST3253 IC4
1 SMD: LM4562 dual op-amp IC5
5 SMD: OPA2277 dual op-amp IC6-10
1 SMD: AMS1117-5.0, 5V IC11
4 SMD: BSS123 MOSFET Q4, 5, 7, 100 (Q100 on display board)
3 BS170: TO92 MOSFET Q1-3
1 MPS751 TO92 transistor Q6
Inductors
Qty Description Component numbers
1 T37-2 toroid (red), windings
depend on band
L4
1 T50-2 toroid (red), windings
depend on band
T1
2 SMD: 47uH inductor L5, 6
Band-specific inductors
80m
Qty Value Description Component numbers
2 2.4uH 25 turns on T37-2 core (red) L1, L3
1 3.0uH 27 turns on T37-2 core (red) L2
1 2.3uH 24 turns on T37-2 core (red) L4
1 5+5+5+68 turns, T50-2 core
(red)
T1
60m
Qty Value Description Component numbers
2 2.1uH 23 turns on T37-2 core (red) L1, L3
1 2.3uH 24 turns on T37-2 core (red) L2
1 2.3uH 24 turns on T37-2 core (red) L4
1 5+5+5+46 turns, T50-2 core
(red)
T1
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QRP Labs QCX-mini Specifications

General

Brand	QRP Labs
Model	QCX-mini
Category	Transceiver
Language	English