High Impedance Piezoelectric Earphone - 20k Ohm Ceramic Earpiece for DIY Electronics & Vintage Crystal Radios.

Piezoelectric Earphone High Impedance Ceramic Earpiece Bare Wire Leads Transistor Crystal Radios & DIY Make Electronics Projects 20,000 (20k) Ohm Sensitivity Vintage Classic Style Piezo Electric

High Impedance Piezoelectric Earphone - 20k Ohm Ceramic Earpiece for DIY Electronics & Vintage Crystal Radios.

Piezoelectric earphones also known as crystal earphones, ceramic earphone, and piezo earpieces are the most sensitive earphones. They are in fact many times more sensitive than even the most sensitive magnetic earphones, dynamic earphones, or electrostatic earphones that you may use on your smartphone. Sensitive earphones have a very high impedance, which is measured in ohms and should not be used directly with a modern amplified radio. Crystal Earphones are so sensitive and require so little power to operate that you can hear a small 'click' just by touching the two bare leads together. Crystal radios will not work with modern earphones or 'earbuds' as they are designed to operate with amplified audio sources found in today's electronic devices. Crystal Earphones are used in the construction of the crystal radio and in some science experiments such as listening to electric fish. Impedance: 20K ohm Resistance: 20M ohm Capacitance: 15,000 pf Sensitivity: 57db at 1KHz Frequency Range: 200 - 8,000Hz Operation Temperature: -20 to 60 degree Celsius Wire: 42-inch Molded twisted Wire Connector: Tinned Leads for DIY Connections We are a small family business from New Jersey. Our ProTechTrader mission is two-fold: teach and provide. We are dedicated to teaching the basics of electronics hobbyists through resources and service. As a small private business, we pride ourselves on service that is personal and tailored to your specific needs. We are also dedicated to providing the sort of electronic components that are not always easily available. ProTechTrader is a small family business dedicated to our mission on electronics: to teach and provide. ProTechTrader started with just one employee and kept it in the family for ten years. We are committed to supporting DIY, makers, and hobbyists of electronics. We are proud to provide components that can be tricky to find. Our premiere offering is the complete kits that we developed with Charles Platt for his book "Make: Electronics". Perhaps our biggest pride is our dedication to answering questions personally and directly with intent to teach.

Key Features

• ✅ Perfect to make electronics projects like Crystal or Transistor Radios DIY Electronics Kits
• ✅ High 20,000 ohm impedance with resistance over 20 million ohms and a capacitance of 15,000 pf
• ✅ Rated Sensitivity of 57db at 1KHz in the frequency range from 200 to 8,000Hz
• ✅ Classic style highly sensitive molded earpiece with 42-in twisted wire with pre-tinned bare wire connections (Also available with 3.5mm Aux Headphone Style Phono Connector - See B01JEOH3QQ)
• ✅ 2022 Updated Model Available (See B09MZML96L) Featuring All Soldered Connections and a Brass Diaphram for Increased reliability and life. PiezoElectric Crystal Earpiece for DIY Electronics Kits

✅ Product Dimensions: 1 x 1 x 1 inches

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