Brüel & Kjaer Type 4134
Brüel & Kjaer Type 4134
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For sale: A vintage Brüel & Kjær Type 4134 condenser microphone cartridge, serial no. 1262437, housed in its original wooden protective case. Includes factory calibration chart with traceability to the National Bureau of Standards (Washington D.C.).
Key Specifications:
• Open Circuit Sensitivity: 12.6 mV/Pa @ 1013 mbar, 23°C, 50% RH
• Capacitance: [value not visible] pF
• Correction Factor: [value not visible] dB
• Condition: Excellent – diaphragm untouched, securely mounted, and stored in climate-controlled environment
• Included: Original calibration chart, protective case, handling instructions
Calibration & Provenance:
This unit comes with its original Brüel & Kjær calibration chart, ensuring traceable accuracy and performance. Ideal for precision acoustic measurements, archival use, or high-end restoration projects.
Shipping & Packaging:
Professionally packed and shipped with full documentation. Worldwide shipping available. Local pickup in Stockholm possible upon request.
Bruel & kjaer
Brüel & kjaer
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| Listed | 7 hours ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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