• Automatic LQ Meter main PCB (CSE240203A) ($5.00) Add to trolley
• 16x2 Alphanumeric module with blue backlight ($10.00) Add to trolley
• Pulse-type rotary encoder with pushbutton and 18t spline shaft ($3.00) Add to trolley
• Automatic LQ Meter front panel (CSE240204A) ($5.00) Add to trolley
• Firmware for the Automatic LQ Meter (Free) Add to trolley
• Automatic LQ Meter drilling diagram (Free) Add to trolley

Kit parts list

	4 × HFD4/5 5V DIP relay
	1 × 4.7µH 700mA M3216/1206 inductor (LQM31PN4R7M00L)
	1 × Solder tag momentary SPDT pushbutton with black cap switch
	1 × Solder tag miniature SPDT two-position latching toggle switch
	1 × Solder tag miniature SPDT centre-off latching toggle switch
	1 × 10kΩ top-adjust multi-turn trimpot
	1 × Automatic LQ Meter main PCB (CSE240203A)
	1 × Arduino Nano
	1 × Pulse-type rotary encoder with pushbutton and 18t spline shaft
	1 × 16×2 Alphanumeric module with blue backlight
	1 × SI5351A clock generator module
	1 × Automatic LQ Meter front panel (CSE240204A)

Connectors

1 × 2-way vertical polarised header with matching plug & pins (2.54mm pitch)

Semiconductors

	1 × 74AC139 dual two-to-four decoder IC (SOIC-16)
	1 × 3mm red diffused LED
	3 × 1N5711 70V 15mA schottky diode (DO-35)
	1 × MAX660M voltage inverter IC (SOIC-8)
	1 × OPA2677IDDAR 220MHz op amp IC (SOIC-8)
	1 × ‎TSV912AIDR‎ dual op amp IC (SOIC-8)
	1 × MCP1661T-E/OT boost regulator (SOT-23-5)
	1 × 2N7002K 60V 300mA N-channel Mosfet (SOT-23)
	4 × 1N4148WS 75V 200mA fast switching diode (SOD-323)
	1 × MBR0540 50V 500mA schottky diode (SOD-123)

Through-hole Resistors

1 × 47Ω ±1% ¼W

SMD Capacitors

	2 × 100µF 6.3V M3216/1206 X5R
	2 × 10µF 16V M2012/0805 X5R
	2 × 330nF 16V M2012/0805 X7R
	11 × 100nF 50V M2012/0805 X7R
	1 × 470pF 50V M2012/0805 C0G/NP0 1%
	1 × 220pF 50V M2012/0805 C0G/NP0 1%
	2 × 100pF 100V M2012/0805 C0G/NP0
	1 × 33pF 100V M2012/0805 C0G/NP0

SMD Resistors

	1 × 10MΩ ±1% M2012/0805 ⅛W
	1 × 1MΩ ±1% M2012/0805 ⅛W
	2 × 390kΩ ±1% M2012/0805 ⅛W
	1 × 120kΩ ±1% M2012/0805 ⅛W
	2 × 100kΩ ±1% M2012/0805 ⅛W
	1 × 33kΩ ±1% M2012/0805 ⅛W
	5 × 27kΩ ±1% M2012/0805 ⅛W
	1 × 12kΩ ±1% M2012/0805 ⅛W
	1 × 4.7kΩ ±1% M2012/0805 ⅛W
	2 × 1kΩ ±1% M2012/0805 ⅛W
	1 × 470Ω ±1% M2012/0805 ⅛W
	1 × 270Ω ±1% M2012/0805 ⅛W
	1 × 220Ω ±1% M2012/0805 ⅛W
	1 × 180Ω ±1% M2012/0805 ⅛W

Cable & Hardware

	6 × 3.2mm ID 5mm OD 3mm long plastic untapped spacer
	1 × Fair-rite 5943000301 toroidal core
	2 × 16mm brass M3 spacer
	2 × 8mm stainless steel panhead M3 screw
	2 × 8mm blackened metal panhead M3 screw
	4 × 10mm blackened metal panhead M3 screw
	4 × Stainless or carbon steel M3 hex nut
	2 × 10mm metal panhead M2 screw
	2 × M2 hex nut
	1 × Medium, white face knob
	1 × 30cm length of Enamelled copper wire, 0.4mm diameter
	1 × Chassis-mounting DC socket, 2.1mm ID
	1 × 3 × AA battery holder
	1 × Red 4mm banana socket/binding post
	1 × Black 4mm banana socket/binding post
	1 × 8mm long, Nylon 3mm led spacer