Crystal Ear Phone High Impedance Piezoelectric Ceramic Earpiece

For crystal radios, transistor radios and sensitive electronics projects

Product Overview

A highly sensitive high-impedance crystal earpiece designed for crystal radios, transistor radios, lab research and DIY electronics experiments. Its piezoelectric ceramic design requires very little power, making it ideal for low-level signal listening and sensitive project work.

Key Benefits

• Very sensitive design for low-power audio signals
• Ideal for crystal radio and electronics experiments
• High impedance performance for specialist applications
• Lightweight earpiece with practical 1m moulded lead
• 3.5mm mono jack for easy project connection

Specifications

• Type: Crystal / ceramic piezoelectric earpiece
• Diaphragm: Ceramic
• Impedance: 20K ohm
• Resistance: 20M ohm
• Capacitance: 15,000 pf
• Sensitivity: 57dB at 1kHz
• Frequency range: 200Hz - 8,000Hz
• Operating temperature: -20°C to 60°C
• Lead length: 100cm / 40 inch moulded twisted wire
• Connector: 3.5mm / 1/8 inch mono headphone jack

Perfect For

• Crystal radio builds and repairs
• Transistor radio projects
• School, college and lab experiments
• DIY electronics and low-signal audio testing
• Specialist sensitive listening applications

Delivery & Returns

Your order will be carefully packed for safe delivery. Returns are accepted within 30 days, provided the item is returned in its original condition and packaging. Please contact us before returning any item.

Warranty

Includes a minimum 1-year manufacturer warranty covering parts and labour for repair purposes, excluding consumable or wear-and-tear items.

Buy With Confidence

Supplied by an established UK audio, lighting and electronics retailer with decades of experience and a commitment to reliable service.