replacement or alternative diode

Thread Starter

ninjaman

Joined May 18, 2013
341
hello

I want to build an antenna analyser I have the circuit and it calls for 4 aa143 diodes. I have looked at the data sheet and found that they are germanium and used in radio circuits.
they are available only on ebay. I wanted to find something similar that was more readily available and cheaper. im not sure what to use though, I have tried OA91. I would like to use the ones in the circuit or closer. I don't know what is required though. should any RF diode be ok?
 

bertus

Joined Apr 5, 2008
22,270
Hello,

Do you have a schematic available?
That way we can see how critical the diodes will be in the circuit.

Bertus
 
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