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The Piezoelectric Earphone is a high-impedance, vintage-style earpiece designed for DIY electronics enthusiasts. With a remarkable 20,000 ohm impedance and a sensitivity rating of 57dB, it operates within a frequency range of 200 to 8,000Hz. This earpiece features a durable ceramic enclosure and comes with 42-inch twisted wire leads, making it ideal for various electronics projects, including crystal and transistor radios.
| Control Method | Touch |
| Unit Count | 1.0 Count |
| Item Weight | 0.22 Ounces |
| Is Electric | Yes |
| Cable Features | Retractable |
| Additional Features | Piezo Electric 20k ohm Impedance Ear Piece, High Sensitivity Vintage Style Ear Phone |
| Enclosure Material | ceramic |
| Headphone Folding Features | In Ear |
| Headphones Ear Placement | In Ear |
| Color | (Beige - Bare Wire Leads) |
| Wireless Technology | RF |
| Connectivity Technology | Wired |
| Headphone Jack | 3.5 mm Jack |
| Impedance | 20000 Ohm |
| Noise Control | None |
L**E
Good quality
Have used in several different circuits. No problem. Recommend
M**N
Just like when I was a kid
My son recently discovered crystal/trench radios and wanted to try his hand at making one. He asked for a piezo earpiece and this is the one I decided to grab for him. Its just like the one I used when I was his age to make a radio. Worked flawlessly. Grab one and get building a radio!
C**0
The voice of the CRYSTAL, still enchanting after 100 years
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.
U**4
Too expensive!
These earphones work although some came in damaged. They are too expensive for for their quality.
H**C
Fast service. Product received was well packaged.
It is exactly what I was looking for; it will be used in assembling a "Fox Hole Radio". Thanks.
J**E
Good quality
Great for my vintage crystal radio build.
J**N
On time and as advertised
It showed up on time and worked as advertised. Used with a homemade radio for a church boys club.
R**.
There is a known issue with these Taiwan made ear pieces
There are a lot of reports of these being bad. Seems about 33% chance you get one that does not work. There is a video on the take apart of the Taiwan made and Japan made ones. So if it does not work on your crystal or similar radio check the ear piece. This puts it as junk in my case. I have spent a week figuring out its junk.
Trustpilot
1 day ago
1 week ago
