[Elecraft] Elecraft RF Probe

[Al Gulseth]

Funny you should mention that -- just in the past few days I was browsing 
through an old [1968 edition] ARRL "Hints and Kinks". In an article titled 
"Diode Protection for the Heath R.F. Probe" the author suggested adding a 
NE-51 neon lamp across the diode (a solution he came up with after frying 
"three or four" 1N34s). This should work for the Elecraft probe as the 
schematic shown in H&K for the Heath probe is virtually identical to the 
schematic in the K1 manual (the only difference is a .005 vs. .01 cap for the 
input coupling and the polarity of the diode).

73 es GL, Al

On Mon May 22 2006 06:53 pm, elecraft-request at mailman.qth.net wrote:
> Date: Mon, 22 May 2006 17:22:23 -0500
> From: "Stan Rife" <srife at swbell.net>
> Subject: [Elecraft] Elecraft RF Probe
> To: <elecraft at mailman.qth.net>
> Message-ID: <007701c67dee$339355a0$6401a8c0 at stansdesktop>
> Content-Type: text/plain;       charset="US-ASCII"
>
>         I forgot to mention that I put a 1N4148 in and it seems to have
> taken it out too.
>
>
>         I put too much voltage on my poor probe. Is there a heavier diode
> that will take a little more voltage, say around 70v, that I can replace
> the 1N31A with?
>
>
> Stan Rife
> W5EWA
> Houston, TX
> K2 S/N 4216