Brüel & Kjær (B&K) Type 4176 Prepolarized Condenser Measurement Microphone.

Included:

• B&K Type 4176 microphone cartridge

• Original calibration card

• Protective storage tube

• Microphone extension rod / adapter

Specifications from calibration card:

• Sensitivity: 61.0 mV/Pa

• Open circuit sensitivity: -24.3 dB re 1V/Pa

• Capacitance: 12.5 pF (typical)

• Frequency reference: 250 Hz

• Calibration date: 02 Dec 1988

Condition:

The microphone appears to be in good physical condition.

Protective grid and connector pins are clean.

However, the complete measuring system is not available, therefore the microphone has NOT been tested and functionality cannot be verified.

Sold as-is.

Please review photos carefully for details.

Untested due to lack of compatible equipment.

📦 Shipping, Customs & Return Policy (Please Read)

Shipping

• We ship worldwide from Taiwan.

• Due to the size and weight of surplus laboratory equipment, the shipping cost shown by eBay may not always be accurate.

Please contact us before purchase with your country and postal code for an exact quote.

• Shipping is typically arranged via UPS, FedEx, or DHL.

• Sea freight or local pickup is available by prior arrangement.

For freight pickup, buyers must provide the eBay pickup QR code or authorization code in advance.

Customs & Import Duties

• All buyers are responsible for customs duties, VAT, import taxes, and clearance fees.

These charges are not included in the item price or shipping cost.

• Import duties are determined by the country of origin of the item (as shown on the nameplate), not the shipping country.

• Customs clearance times may vary and delays are possible.

• If a shipment is returned due to customs issues, all shipping, return shipping, and re-import costs will be deducted from any refund.

Return Policy

• No returns. No refunds. All items are sold AS-IS.

• Only the condition explicitly shown in photos or described in the listing is guaranteed.

• Used surplus equipment may have additional cosmetic wear, missing parts, or defects not visible in photos.

• We are not a repair or refurbishment company. Full functionality cannot be guaranteed, especially for older or complex systems.

• By purchasing without prior questions, the buyer accepts all risks associated with used and surplus equipment.

If you have any questions or specific requirements, please contact us before purchasing.