++++++++++++++++++
From: "John McClain" <digi2 at earthlink.net>
To: "Helmut Usbeck" <vze2gmp4 at verizon.net>,
        <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] cap values
Date: Sat, 22 Jun 2002 15:43:04 -0700

Got to

   www.elecraft.com
   Builders Resources
   Capacitor Identification and Marking Chart (updated)

It will tell you all you ever wanted to know.

John
K7SVV
K2 #2569

++++++++++++++++++
Reply-To: "John J. McDonough" <wb8rcr at arrl.net>
From: "John J. McDonough" <wb8rcr at arrl.net>
To: <elecraft at mailman.qth.net>
Cc: "Gilbert J Cross" <k8eag at juno.com>
Subject: Re: [Elecraft] active components pin outs
Date: Mon, 18 Mar 2002 18:02:58 -0500

Gil

I'm sure there's a site somewhere with the 7400 series pinouts, but what I
always do is go to Google and type in the part number.  Google will find the
datasheet, usually in the first page of hits.  The datasheet will not only
have the pinout, but the specs, theory of operation, example circuits, etc.

This doesn't work for very obsolete parts, however.

72/73 de WB8RCR    http://www.qsl.net/wb8rcr
didileydadidah     QRP-L #1446 Code Warriors #35

----- Original Message -----
From: "Gilbert J Cross" <k8eag at juno.com>
To: <elecraft at mailman.qth.net>
Sent: Monday, March 18, 2002 5:04 PM
Subject: [Elecraft] active components pin outs


>         Gentlemen, I am looking for a place on the web that I may go to
> get pin outs for various IC's etc. Is there such a place?
>
>                 Thank you   Gil  K8EAG  K2 800

++++++++++++++++++
Date: Mon, 18 Mar 2002 17:42:41 -0500
To: elecraft at mailman.qth.net
From: Kevin Cozens <kcozens at interlog.com>
Subject: Re: [Elecraft] active components pin outs

At 05:04 PM 03/18/2002 -0500, you wrote:
>         Gentlemen, I am looking for a place on the web that I may go to
>get pin outs for various IC's etc. Is there such a place?

The best place would be to check the manufacturers web site for information 
assuming the part is not proprietary.


Cheers!

Kevin.  (http://www.interlog.com/~kcozens/)

Owner of Elecraft K2 #2172        |"What are we going to do today, Borg?"
E-mail:kcozens at interlog dot com|"Same thing we always do, Pinkutus:
Packet:ve3syb at ve3yra.#con.on.ca.na|  Try to assimilate the world!"
#include <disclaimer/favourite>   |              -Pinkutus & the Borg

+++++++++++++++++
From: "Stuart Rohre" <rohre at arlut.utexas.edu>
To: <elecraft at mailman.qth.net>, "Gilbert J Cross" <k8eag at juno.com>
Subject: Re: [Elecraft] active components pin outs
Date: Mon, 18 Mar 2002 18:04:53 -0600

The makers of replacement semiconductors usually have that information.
Look for NTE.com or ECG as web sites.
The information will be in their printed catalogs available from parts
distributors who carry NTE replacements or the ECG line.   One such is
Fry's, where I saw ECG catalog last week.
72, Stuart K5KVH

+++++++++++++++++++
From: "Don Brown" <DolfinDon at msn.com>
To: "Kevin Cozens" <kcozens at interlog.com>,
        "Elecraft" <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] active components pin outs
Date: Mon, 18 Mar 2002 18:15:29 -0600

Try http://www.xs4all.nl/~ganswijk/chipdir/

Don Brown
KD5NDB

----- Original Message -----
From: Kevin Cozens
Sent: Monday, March 18, 2002 6:01 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] active components pin outs

At 05:04 PM 03/18/2002 -0500, you wrote:
>         Gentlemen, I am looking for a place on the web that I may go to
>get pin outs for various IC's etc. Is there such a place?

The best place would be to check the manufacturers web site for information
assuming the part is not proprietary.

+++++++++++++++++++++++
From: "Dave Sergeant" <dsergeant at connectfree.co.uk>
To: "elecraft" <elecraft at mailman.qth.net>
Date: Tue, 19 Mar 2002 08:56:05 -0000
Subject: [Elecraft] Chip data and pinouts

Google is now my first port of call, it always seems to take you directly to the
datasheet rather than vendor's sites that the other search engines bring up.  However
the best site for finding datasheets is what I call the 'Mega link' site -
http://www.bgs.nu/sdw/s.html - a huge list of manufacturers and direct links to their
datasheets pages.  Success varies enormously between manufacturers, as some only list
their current products.  One of the best is the SGS Thomson site, it seems to have
everything.

K2 #2498 coming on nicely and should be finished in a few days. I shall shortly
however be unsubscribing from the reflector.  The volume of non-K2 type mails is
stretching my already overloaded inbox, interesting though they all are.

Dave G3YMC
dsergeant at iee.org
dsergeant at btinternet.com
http://www.dsergeant.btinternet.co.uk


++++++++++++++++++++++++++
Date: Thu, 4 Apr 2002 05:34:58 -0700
From: "Dave Ek" <ekdave at earthlink.net>
To: <qrp-l at lehigh.edu>
Subject: [123947] Datasheet locator web page

Gang,

Ran across this page while searching for parts. Might be useful:

http://www.datasheetlocator.com/

73 de Dave NK0E

+++++++++++++++++++++
From: "Don Brown" <DolfinDon at msn.com>
To: "Phil Wheeler" <w7ox at earthlink.net>,
        "kg4dni" <kg4dni at truthmail.com>
Cc: "Elecraft" <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K2 Audio-Hi Cur-Low P signs and wonders
Date: Fri, 13 Sep 2002 10:36:20 -0500

Hi

The 'N' means plastic package. Surface mount is 'M' and ceramic package i=
s 'J'. These designators are used by National Semiconductor other manufac=
turers use different letters to indicate the package

Don Brown
KD5NDB

----- Original Message -----
From: Phil Wheeler
Sent: Friday, September 13, 2002 9:25 AM
To: kg4dni
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K2 Audio-Hi Cur-Low P signs and wonders

kg4dni wrote:

>And what does 'N-8' signify for the part name "LM380N-8"??
>

There are different versions of the LM380N.  8 means 8 pin DIP (there is =20
also one with 14 pins).

I don't recall re the N.

Phil

++++++++++++++++++
From: "Stuart Rohre" <rohre at arlut.utexas.edu>
To: <tlogan7 at cox.net>, <Elecraft at mailman.qth.net>
Subject: Re: [Elecraft] How to check a diode?
Date: Mon, 3 Mar 2003 12:02:27 -0600

If the diode does not have a very low resistance in parallel, a shorted one
could be detected with the RX100 range of most Volt Ohmmeters.  It would
measure zero ohms.  A good diode would test very low resistance with the
polarity of the probes one way, and much higher resistance with probe
polarity reversed.
73, Stuart K5KVH

++++++++++++++++++
From: "Don Brown" <DolfinDon at msn.com>
To: "Bob Lewis (AA4PB)" <rlewis at staffnet.com>,
        <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] 1N4007 diode question?
Date: Sun, 6 Apr 2003 17:54:36 -0500

Hi

Do not sub the 1n4007 with a lower voltage diode. These diodes are used as
pin diodes to switch RF. The 1n4007 is the only one in the series that have
the pin characteristics.

Don

+++++++++++++++++
From: "Don Brown" <DolfinDon at msn.com>
To: "Bob Lewis (AA4PB)" <rlewis at staffnet.com>,
        <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] 1N4007 diode question?
Date: Mon, 7 Apr 2003 09:10:38 -0500

Hi

The 1n4000 series of diodes are general purpose rectifier diodes designed
for low frequency use primarily 60 Hz power supplies. The construction is
the same for the series except the 1n4007. The lower voltage diodes are
basic PN junctions and would not work as a RF switch. The 1n4007 however has
an extra intrinsic (undoped) layer forming the P-I-N junction. This is, I
would guess, is to get the 1Kv PIV rating but it also allows the 1n4007 to
work as a RF switch like a true PIN diode The RF characteristics are not
specified on this diode because it is not designed to do this type of work
it just happened to work out that way and they are very cheap. True PIN
diodes work better than the 1n4007 but are more expensive and not as readily
available. Elecraft has designed the RF switching to work with the 1n4007
and making substations of different diodes may not work. Other 1n4000 series
defiantly do not have the PIN structure so they will not work.

Don Brown
KD5NDB

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