[Kenwood] Pin Diodes for TS-930.

[Jim Dicso]

Eric,

Thanks for your sound advice.

Several Google searches have yielded part #'s by HP, Microsemi and others
and some small quantity sources.

I'm sure you've seen the 'cheap' gene behaviour,  no PIN diodes in stock but
thousands of  switching diodes  in stock ....
I have to fight the urge to use the switching diodes andf go with PIN
diodes.

Regards, Jim K2SZ

----- Original Message ----- 
From: "Eric Dobrowansky" <kk2ed at comcast.net>
To: "Jim Dicso" <dicso123 at hotmail.com>; <kenwood at mailman.qth.net>
Sent: Friday, December 24, 2004 11:10 AM
Subject: Re: [Kenwood] Pin Diodes for TS-930.


> Unless absolutely necessary, STAY AWAY from NTE or equivalent replacement
> parts. Usually, they are a generic fit for a wide range of parts, and the
> tolerances can vary widely.  For any kind of critical (RF) circuit, always
> try to use the original part.
>
> I never use generic (NTE etc) parts in the repairs I perform. Even if I
> can't get the original replacement, I'll dig deep and try to find the next
> closet part by the same or a similar OEM manufacturer.  I've learned the
> hard way many years ago. While the generic replacements will work in most
> applications, they will not deliver the same level of performance. Believe
> it or not, it is like the old story of using certain brand tubes in
certain
> transceivers - a lot of circuits are designed around the particular
> input/output characteristics of a particular component.
>
> Spend the few extra dollars, and you will be happier in the long run.
>
> 73
> Eric
> KE2D
>
>
> ----- Original Message ----- 
> From: "Jim Dicso" <dicso123 at hotmail.com>
> To: <kenwood at mailman.qth.net>
> Sent: Friday, December 24, 2004 12:47 AM
> Subject: [Kenwood] Pin Diodes for TS-930.
>
>
> The NTE 519 was recommended by one respondent as a replacement for the
> 1S2588 PIN DIODE for switching in the TS-930.  The NTE Web description for
> the 519 part is Si, GP plus its use as a replacement for 1N914 and 1N4148
> diodes.  Are these two parts acceptable replacements for the 1S2588?
>
> Thanks, Jim K2SZ.
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