[Elecraft] RF probe diode question

[Geoffrey Mackenzie-Kennedy]

Vic,

Having blown up my share of probe diodes, I find it useful to stick a label 
on any such homemade probe noting its maximum safe peak working voltage 
derived from the diode's PIV rating.

73,
Geoff
GM4ESD

----- Original Message ----- 
From: "Vic K2VCO" <vic at rakefet.com>
To: <N2EY at aol.com>
Cc: "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Monday, November 27, 2006 2:48 AM
Subject: Re: [Elecraft] RF probe diode question


> N2EY at aol.com wrote:
>
>> 1N91 is germanium, like the 1N34.
>>
>> But while 1N34 is a small-signal diode, 1N91 is a power rectifier. That 
>> means a lot more capacitance and back leakage. I don't know if that will 
>> matter.
>
> I found a 1N45.  That is pretty similar to a 1N34, so I'll use it.  The 
> drop is about 0.28V.