If these are the diodes that switch in and out the input
band pass filters, you are better off with pin diodes which
switch much slower than 4148s. The reason is so that strong
incoming rf does not switch the diodes that are supposed to
be on (or off) for the band you are using. This was a big
issue which became popular about 10 years ago. There are
some kits available to convert the fast switching diodes to
pin diodes. But, don't go and wholesale replace every diode
in sight. I think some of these kits were somewhat ill
advised. Your receiver may use pin diodes already in many
places.
Chuck, KE9UW
---- Original message ----
>Date: Wed, 2 Feb 2005 15:35:58 GMT
>From: "ultrafixedwing@juno.com" <ultrafixedwing@juno.com>
>Subject: Re: [TenTec] Re: Paragon Question - Lack of
sensitivity
>To: tentec@contesting.com
>
>
>Will a 1N914/4148-Type Diode work in the Paragon front end?
It's a silicon switching diode. If so, I'll run out and get
a handfull.
>Thanks,
>Paul
>KS2S
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