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Short-form kit for the Calibrated Microphone (SMD version)

A kit that includes the PCB and all SMD components to build the main circuit board for the Calibrated Measurement Microphone. Suitable electret microphone capsules (ECMs) are available separately and those sets also include the required compensation components.

All that's left is the XLR socket, wire and housing. There are two options for the housing, as described in the article.

Note: photo shows assembled module. Some components may have a different appearance.

Cat No SC6755. Price: AUD $22.50 ¹

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In stock:

yes (44 available). Estimated dispatch time: 1-3 days

Related to:

Project: Calibrated Measurement Mic (August 2023 [print issue] [online issue])
Project: Reference MEMS Microphones (April 2024 [print issue] [online issue])

Other items relevant to these projects:

Calibrated Measurement Microphones:

Calibrated Measurement Mic:

Calibrated mic capsule set - Panasonic WM61A lot 4A14 ($12.50) Add to trolley
Calibrated mic capsule set - JLI61A lot 3 ($12.50) Add to trolley
Calibrated mic capsule set - JLI60A V02 ($12.50) Add to trolley
Calibrated mic capsule set - CMC6027 ($12.50) Add to trolley
Calibrated mic capsule set - CMC2742 ($12.50) Add to trolley

Kit parts list

1 × Calibrated Measurement Microphone PCB [01108231] (SMD version)

Semiconductors

	1 × BC849C 100mA 30V low-noise NPN transistor (SOT-23)
	2 × BC860C 50V 0.1A low-noise PNP transistor (SOT-23)
	3 × BZX84C6V8LT1 diode (SOT-23)

Through-hole Capacitors

	1 × 100µF 25V electrolytic
	1 × 100µF 50V 105°C electrolytic (8mm diameter)

SMD Capacitors

	1 × 10µF 16V M2012/0805 X5R
	3 × 1µF 50V 4.3×4.3mm non-polarised electrolytic
	2 × 2.2nF 50V M2012/0805 X7R
	2 × 1nF ±5% 50V M2012/0805 C0G/NP0
	2 × 470pF 50V M2012/0805 C0G/NP0 5%

SMD Resistors

	2 × 150kΩ ±1% M2012/0805 ⅛W
	1 × 100kΩ ±1% M2012/0805 ⅛W
	1 × 39kΩ ±1% M2012/0805 ⅛W
	1 × 10kΩ ±1% M2012/0805 ⅛W
	1 × 5.6kΩ ±1% M2012/0805 ⅛W
	2 × 2.2kΩ ±1% M2012/0805 ⅛W
	1 × 1kΩ ±1% M2012/0805 ⅛W
	1 × 330Ω ±1% M2012/0805 ⅛W
	2 × 47Ω ±1% M2012/0805 ⅛W

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