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

A kit that includes the PCB and all through-hole 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 SC6756. Price: AUD $25.00 ¹

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In stock:

yes (33 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 [01108232] (TH version)

Semiconductors

	1 × BC549C 30V 100mA NPN transistor (TO-92)
	2 × BC560C 50V 100mA low-noise PNP transistor (TO-92)
	3 × 6.8V 500mW zener diode (DO-35)

Through-hole Capacitors

	1 × 100µF 25V electrolytic
	1 × 100µF 50V 105°C electrolytic (8mm diameter)
	1 × 10µF 50V electrolytic (2.5mm pitch)
	3 × 1µF 100V MKT
	2 × 2.2nF 100V MKT
	2 × 1nF 100V MKT
	2 × 470pF 50V ceramic disc

Through-hole Resistors

	2 × 150kΩ ±1% ¼W
	1 × 100kΩ ±1% ¼W
	1 × 39kΩ ±1% ¼W
	1 × 10kΩ ±1% ¼W
	1 × 5.6kΩ ±1% ¼W
	2 × 2.2kΩ ±1% ¼W
	1 × 1kΩ ±1% ¼W
	1 × 330Ω ±1% ¼W
	2 × 47Ω ±1% ¼W

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