Re: tunnel diodes

[brian whatcott <inet@INTELLISYS.NET>]

At 07:56 11/7/00 -0500, you wrote:
> Hi Listers:
>
> Someone knows of a source of inexpensive and low current (a few
> ma) tunnel diodes. I am interested in them for showing beginer
> electronics students such an interesting negative resistance
> characteristic the tunnel diodes have.
>
> Thanks in advance.
>
> Jorge Hoyos

The first two sources are current production microwave rated devices
(read expensive)

<http://www.alcmicrowave.com/limiter.html>

<http://www.advanced-control.com/rcctdd.htm>


Here's the most promising source I turned up quickly...

" These new Tektronix (152-0125-00) 4.7ma Tunnel
Diodes have had their leads clipped and bent for installation
in a circuit board, but they were never installed. Both leads
are about 3/8" long and can be easily straightened and lengthened
to fit your instrument. // I know these are good diodes
 since I checked them on my 575 Transistor Curve Tracer.
(Tunnel Diodes cannot be checked like an ordinary silicon
or germanium diode since they will look like short circuit
 on an ordinary ohm meter.) Tunnel Diodes are getting hard
 to find these days and you might want to consider putting
these away for a rainy day, just in case..."
. . .
 Inquire via email for current price
For information, contact
 me by email: w7ni@teleport.com Send orders and
 payment via regular mail, to:

                                   Stan Griffiths, W7NI
                                   18955 S.W. Blanton Street
                                   Aloha, OR 97007-1230








brian whatcott <inet@intellisys.net>  Altus OK
                Eureka!