EMRFD Message Archive 10040

Message Date From Subject
10040 2014-05-19 18:13:39 Dana Myers Ge diodes: 1N34A vs 1N60 vs AA143
From what I can tell, these are all Ge diodes. The AA143 seems to be a "modern"
variant of Ge diode with greater mechanical ruggedness and very low reverse
leakage. 1N60 might be an improved 1N34A. I can't tell. There's an improved
1N60 variant as well.

However, I tend to conclude they're all comparable in low-level
HF RF rectification use (under 1Vrms).

Does anyone have any insight to the relative merits of these diodes in
use at < 1Vrms HF?

Cheers -
Dana K6JQ
10041 2014-05-19 20:23:24 cwfingertalker Re: Ge diodes: 1N34A vs 1N60 vs AA143
Crystal radio sets.  Maybe an RF sniffer circuit. 

Bill N7EU
10042 2014-05-19 20:29:59 David Re: Ge diodes: 1N34A vs 1N60 vs AA143
I have tested them in balanced square law detectors and they all worked about
the same. I have a whole spool of 1N270s that I picked up at a swap meet to
use. They make great baker clamps.

I forget which one but one of the BAT series schottky diodes is a good
substitute.

On Mon, 19 May 2014 18:13:27 -0700, you wrote:

> From what I can tell, these are all Ge diodes. The AA143 seems to be a "modern"
>variant of Ge diode with greater mechanical ruggedness and very low reverse
>leakage. 1N60 might be an improved 1N34A. I can't tell. There's an improved
>1N60 variant as well.
>
>However, I tend to conclude they're all comparable in low-level
>HF RF rectification use (under 1Vrms).
>
>Does anyone have any insight to the relative merits of these diodes in
>use at < 1Vrms HF?
>
>Cheers -
>Dana K6JQ