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Welcome dattasheet our site! The current in a crystal radio is much less then the forward voltage will also be much less so I found the datasheet 47 years old! To participate you need to register.

New Jersey Semiconductor 2NN datasheet pdf

First I connected a 1N diode in a crystal radio and heated a lead of the diode with soldering iron almost 10 seconds. Thread starter Nikolai Petrenko Start date Oct 24, In order to better serve you, we have created a new web based request system. Then decreasing voltage drop was not fast like till the 10 seconds. Electrical sparks car spark plugs or electrical switching and lightning are datasheeg.

In order to better serve you, please access the online inquiry system. But and seem by fit to make push-pull amplifer. Forums New posts Search forums. It’s hard to adjust though, maybe with a DC feed back circuit.

Started by fastline Yesterday at 8: The heat coil feed by battery. Sn Plating Analytical Test Report: So for your crystal radio you would need a germanium. AM radio sounds awful. I don’t know why you are having trouble finding the 1N34 diode.


(PDF) 2N4001 Datasheet download

However I was unable to get audio from silicone diode like The 1N silicon diode typically is 0. They also make fast low voltage Schottky diodes for small signal high frequency use.

Media New media New comments Search media. Bond Wire Analytical Test Report: Make an FM radio instead. Clay and Nichrome, geezo, I don’t understand why you can’t get the right part as I showed you they are available on Datawheet. Mikebits Well-Known Member Oct 25, Then a transistor with no series emitter resistor and its base biased at 0. The trees are dropping brightly colored leaves all over the place.

At last it was working same as 1N34 or any schottky diode.

Each transistor is different, the voltage increases when the current increases and the voltage decreases when the temperature increases. I also hear red led in series with battery can provide louder sound than 1n34 in some sites like n24001.

2N Datasheet PDF ( Pinout ) – NPN Transistor

You can reject cookies by changing your browser settings. I never thought that the a diode’s junction voltage drop forward voltage is depended to temperature in such GREAT way! I have ft antenna but can longer to ft. A diode has internal resistance so its forward voltage gradually increases as its current increases. A crystal earphone has a very high impedance then it does not “load down” the low sound levels from a crystal radio.


Voltage drop was mV at first and got around mV just after around 10 seconds of heating. I will try all stuff to find what is the best: Willen Well-Known Member Oct 25, Here are the instructions how to enable JavaScript in your web browser. Using Google, this was the first link on my search results.

The original poster cannot buy ordinary electronic parts because he is a kid living far from a city in Vietnam.

All I need are for radio receiver or Datashheet, light For further assistance using the new web based request system, click here. A piezo transducer squeaks awful sounds. You must log in or register to reply here.

I heated its one lead almost 45 seconds I was thinking the diode is going to blast, but it’s fine still. The change in forward voltage of a silicon not silicone which is a synthetic rubber diode when its temperature changes is what causes a poorly biased transistor not to work properly it is a temperature sensor.

Nikolai Petrenko Member Oct 24,