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Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Around last seconds I got just mV hardly and I stopped heating I do not want to waste parts actually.

Each transistor is different, the voltage increases when the current increases and the voltage decreases when the temperature increases.

2N (SemeLAB) – Bipolar NPN Device inA Hermetically sealed TO39 Metal Package.

The base-emitter forward voltage is 0. Electrical sparks car spark plugs or electrical switching and lightning are heard. Make an FM radio instead. The germanium diode I showed has a typical voltage of 1V at 10mA but is 0. At last it was working same as 1N34 or any schottky diode.

So for your crystal radio you would need a germanium. Willen Well-Known Member Oct 26, First I connected a 1N diode in a crystal radio and heated a lead of the diode with soldering iron almost 10 seconds.


What makes the 1N34 different is the low forward voltage drop, on the order of. Our website uses cookies! I made a wood case for it. Germanium diodes have extremely low capacitance. I don’t have crystal earphone so I made one that attach piezoelectric diaphragm got from alarm chrono watch to a headphone.

Voltage drop was mV at first and got around mV just after around 10 seconds of heating.

AM radio sounds awful. In stock Click to view availability. 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??? I connected the diode in DMM’s test probe and started to heat the lead of the diode. N24001 and seem by fit to make push-pull amplifer.

A Central sales representative will confirm the availability of the plating type requested. I am searching something can replace these transistors: I also hear red led in series with battery can provide louder sound than 1n34 in some sites like techlib.

A red LED biased with 1.

New Jersey Semiconductor

No the 1N will not replace a 1N34 or 1n34A. Alternate Devices with Different Packaging:. Welcome to our site! A crystal earphone has a very high impedance then it does not “load down” the low sound levels from a crystal radio.


Thread starter Nikolai Petrenko Start date Oct 24, Nikolai Petrenko Member Oct 25, Sn Plating Analytical Test Report: Started by fastline Yesterday at 8: I never thought that the a diode’s junction voltage drop forward voltage is 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: I also want to know can 1N replace 1N34 in crystal 2n44001.

(PDF) 2N4001 Datasheet download

A 1N is completely different but try one in your crystal radio. I just used an cellphone earpiece plays little louder than others and got loud audio like a volume 1 of my cellphone.

To participate you need to register. I don’t know why you are having trouble finding the 1N34 diode. Its high frequencies are cut above about 2. Then a transistor with no series emitter resistor and its base biased at 0.

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