Wouldn't that require an electric field strength on the order of 100V/mm (100kV/meter)

Not really. You can get an NE2 to light up by holding it by one lead. Bend the other away, and shuffle on a wool rug in winter (avoid door knobs, or any metallic surface).

But, if you can get one to light up near a cell phone antenna, the published figures for output power are several orders of magnitude low.

 

Not really. You can get an NE2 to light up by holding it by one lead. Bend the other away, and shuffle on a wool rug in winter (avoid door knobs, or any metallic surface).

I don't see how that is inconsistent with 100V/mm, Seeing as you can generate a couple thousand volts that way.
My reasoning was that the NE2 electrodes are ≈1mm apart, IIRC. Nominal breakdown voltage is about 100V. That's 100V/mm.

EDIT: OK, maybe the spacing is 2.5mm. That's 40V/mm.

 

It came to mind because I remember the CB space cadets sporting around with them taped to their antenna's back in the 70's?

 

Well, just ran a PCB for the sample IC, it was a little pain in the a$% to solder the IC on but got it done....

Impressive, you have the hands of a surgeon with a Dremel.

 

it was something like this
http://www.youtube.com/watch?v=CNJVhzOjWgU

can anyone help me to identify the rf diode used in the system above?
urgently need info

thanks a lot and appreciated those who help out in this thread

 

it was something like this
http://www.youtube.com/watch?v=CNJVhzOjWgU

can anyone help me to identify the rf diode used in the system above?
urgently need info

thanks a lot and appreciated those who help out in this thread

It seems he is using some type of old hard to find Germanium Diodes, primarily the 1N34A type....

 

It seems he is using some type of old hard to find Germanium Diodes, primarily the 1N34A type....

You know that time has really past you by when you realize that a 1N34 has become a hard to find component.

 

1N34A is popular with crystal set hobbyists. They are readily available.

http://www.amazon.com/American-Microsemiconductor-1N34A/dp/B001GIAUNW

http://www.1n34a.com/parts.htm#diodes

http://www.angelfire.com/electronic2/index1/In34a.html

They will probably eventually probably disappear.

 

1N34A is popular with crystal set hobbyists. They are readily available.

http://www.amazon.com/American-Microsemiconductor-1N34A/dp/B001GIAUNW

http://www.1n34a.com/parts.htm#diodes

http://www.angelfire.com/electronic2/index1/In34a.html

They will probably eventually probably disappear.

Not very readily available anymore, except from "amateur radio" and vintage radio parts online sales... don't even know if I would trust any of those three for an online purchase....

 

is there any alternative component to replace it?

 

is there any alternative component to replace it?

Unless you are looking for thousands of them, you can get a few for US 30 cents each from the sources I listed.

 

i tried with 1N60 diode and it is not working. do it need other component to connect with it?