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A crystal earphone has a very high impedance then it does not “load down” the low sound levels from a crystal radio. However I was unable to get audio from silicone diode like I don’t know why you are having trouble finding the 1N34 diode. Willen Well-Known Member Oct 26, Articles Top Articles Search resources. Its high frequencies are cut above about 2. Potentiometer Questions Started by norbss Yesterday at 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!

Our website uses cookies! I have no temperature meter. Login to the website is required.

Bipolar NPN Device.

The germanium diode I showed has a typical voltage of 1V at 10mA but is 0. But and seem by fit to make push-pull amplifer.


I also hear red led in series with battery daatasheet provide louder sound than 1n34 in some sites like techlib. Nikolai Petrenko Member Oct 25, I think can made an stable heated 1n by wind few turns of nichrome around the diode than make a clay coat for it. Performance depends on your antenna and dataeheet too.

Nikolai Petrenko Member Oct 26, I have ft antenna but can longer to ft.

2N Datasheet PDF – Texas

I connected the diode in DMM’s test probe and started to heat the lead of the diode. I never thought that the a diode’s junction voltage drop datadheet voltage datasheeet depended to temperature in such GREAT way! Perhaps you are being held prisoner in a Gulag somewhere in Siberia in which case, you may be interested in building this: AM radio sounds awful. Electrical sparks car spark plugs or electrical switching and lightning are heard. The transistor amplifies the changes in the forward voltage of its base-emitter diode.

Sn Plating Analytical Test Report: A 1N is completely different but try one in your crystal radio. I got the the AM radio working after almost 5 seconds with small volume and got it increasing second by second. You must log in or register to reply here.

How can we help you? Germanium diodes have extremely low capacitance. I can make ft antenna and good ground for strong signal 1N heated or red LED in series with 1,5v cell will be good idea???

They also make fast low voltage Schottky diodes for small signal high frequency use. The heat coil feed by battery. I just used an cellphone earpiece plays little louder than others and got loud audio like a volume 1 of my cellphone. All I need are for radio receiver or RF, light Bond Wire Analytical Test Report: A Central sales representative will confirm the availability of the plating type 2n44001.



Welcome to our site! First I connected a 1N diode in a crystal radio and heated a lead of the diode with soldering iron almost 10 seconds.

For a better experience, please enable JavaScript in your browser before proceeding. Thread starter Nikolai Petrenko Start date Oct 24, The base-emitter forward voltage is 0. Each transistor is different, the voltage increases when the current increases and the voltage decreases when the temperature increases.

For further assistance using the new web based request system, click here. To participate you need to register. Started by fastline Yesterday at 8: I don’t have crystal earphone so I made one that attach piezoelectric diaphragm got from alarm chrono watch to a headphone.

Another test is to measure its voltage drop by applying heat. In order to better serve you, we have created a new web based request system. Hi, A heated 1N diode will come down in forward voltage, but it takes maybe degrees C to come down by maybe 0.