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🎙️ Hear the past, build the future with every crystal-clear click!
This Piezoelectric Earphone features a vintage-style ceramic earpiece with an ultra-high 20,000 ohm impedance and 57dB sensitivity at 1kHz, optimized for crystal and transistor radio DIY projects. Equipped with 42-inch pre-tinned bare wire leads, it offers easy integration for electronics enthusiasts and professionals. Its durable brass diaphragm and molded twisted wire ensure reliable, long-lasting performance, making it the go-to choice for millennial makers seeking authentic, sensitive audio components.






| ASIN | B071JWPTT9 |
| Additional Features | High Sensitivity Vintage Style Ear Phone, Piezo Electric 20k ohm Impedance Ear Piece |
| Age Range Description | Adult |
| Audio Driver Type | Piezoelectric Driver |
| Best Sellers Rank | #16,318 in Electronics ( See Top 100 in Electronics ) #849 in In-Ear Headphones |
| Brand | ProTechTrader |
| Built-In Media | Piezoelectric Earphone with Bare Wire Leads for Crystaol Radios |
| Cable Features | Retractable |
| Color | (Beige - Bare Wire Leads) |
| Compatible Devices | Crystal Radios, Transistor Radios |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Customer Reviews | 4.5 4.5 out of 5 stars (206) |
| Earpiece Shape | in-ear |
| Enclosure Material | Ceramic |
| Frequency Range | 200 - 8,000Hz |
| Headphone Folding Features | In Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 20000 Ohms |
| Is Electric | Yes |
| Item Weight | 0.22 Ounces |
| Manufacturer | ProTechTrader |
| Model Name | Piezo-bare |
| Model Number | Piezo-bare |
| Noise Control | None |
| Number of Items | 1 |
| Specific Uses For Product | DIY Electronics |
| UPC | 789048342869 |
| Unit Count | 1 Count |
| Wireless Technology | RF |
C**0
I build a lot of different types of radios and related stuff. Use these earphones on very basic crystal/fox hole type sets. OK price, decent sound and no issues with any of them. This radio is printed on a FLASH FORGE 3D printer (reviewed on AMAZON), uses coil wire and a germanium diode also from AMAZON. A good ground, a long enough antenna (both with the same coil wire as the coil) and you can listen to local AM broadcasts. No matter how many I make, it is always fun when the static softens and a voice or music is clear. And it is powered purely by the radio waves themselves.
L**R
Écouteur à cristal (haute-impedance) pour project, três bonne qualité
O**U
Der Ohrhörer erfüllt 100%ig die Angaben des Herstellers; er funktioniert (korrekte Anpassung wohl vorausgesetzt) sehr gut. - Ich bedanke mich für diesen Artikel. Gruß o.thu
P**N
Good classic design, quality construction, great price
C**S
Works as expected.
Trustpilot
2 months ago
1 week ago