Crystal Radio Set AM MW With Crystal Earpiece Germanium Diode Variable Capacitor

• Popularity - 29160 views, 4165.7 views per day, 7 days on eBay. Super high amount of views. 73 sold.
• Price - Avg: $0.00, Low: $0.00, High: $0.00. Best quality when compared to PicClick similar items.
• Seller - + items sold. 0% negative feedback. Great seller with very good positive feedback and over 50 ratings.

Basic Crystal Radio Set<br>Single Tank Circuit with Germanium Diode Variable Capacitor and a Crystal Earpiece<br>this is not about performance, its the very basic crystal radio circuit and it's one of<br>the very first steps of our beloved Amateur Radio Hobby.<br>in my location (Athens - Greece) using a 10 meter vertical wire antenna and the mains<br>ground I'm able to listen 3 - 4 MW stations during daylight, 729khz ERT local broadcast<br>and 2 - 3 more local MW pirate stations<br>during the night the received stations could reach or exceed the number of 10<br>including distant stations from Hungary,Romania and some Arabic spoken and others.<br>if you haven't any experience with crystal radio till now please know,<br>this works without battery or any external power source, it only needs the RF power<br>coming from the antenna so good - long external antenna i very important<br>also since there is no amplifier the audio is not loud but it's audible<br>normal modern headphones will not work.<br>there are 3 contact antenna terminals<br>one for ground connection (GND)<br>one antenna connection directly to the tank circuit (ANTENNA 1)<br>and one antenna connection through a 56pf capacitor (ANTENNA 2)<br>ANTENNA 2 connection gives lower sensitivity but it's used when your antenna<br>has a lot of self parasitic capacitance that can affect and reduce the upper<br>frequency end of the tank circuit.<br>detector diode is the very sensitive Russian germanium diode<br>D311 that usually measures 0.18V VF.<br>variable capacitor is 550pF<br>coil is fixed and wrapped externaly<br>a crystal earpiece is included<br>dimensions: 70mm diameter 45mm high<br>material: impregnated paper, plastic<br>you get what you see in the first picture.<br>Registered - Traceable Post Shippings<br>Ask for combined shippings if you also purchase any of my other items<br>