[1000mp] PIN Diode Mod for Mark V

Mon, 12 Apr 2004 03:51:42 -0500

I just checked my MKV schematic of the  receiver RF unit input bandpass 
filter switching diodes and they are 1SV271 which a quick search found 
they are made by Toshiba and called Silicon Epitaxial Pin type diodes.  
So I also am curious as to where else the MKv might be lacking  pin 
diodes.

73

Dale, K9VUJ

On Apr 11, 2004, at 22:09, Mike Schatzberg wrote:

> Hello All:
>
> Can anyone provide details about the Yaesu PIN diode mod for the Mark 
> V which reduces receiver noise by 10 Db?  This change is apparently 
> not quite so simple, and may involve more than just a few component 
> changes.
>
> Thanks for your collective inputs.
>
> 73,
>
> Mike Schatzberg
> WB2AJI
>
> --- StripMime Report -- processed MIME parts ---
> multipart/alternative
>   text/plain (text body -- kept)
>   text/html
> The reason this message is shown is because the post was in HTML
> or had an attachment.  Attachments are not allowed.  To learn how
> to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
> _______________________________________________
> List Moderator: Richard Lubash N1VXW
> 1000mp mailing list
> [email protected]
> To Change Options or Unsubscribe:
> http://mailman.qth.net/mailman/listinfo/1000mp