RadioBanter - View Single Post

March 7th 06, 02:28 AM posted to rec.radio.amateur.homebrew

wrote:

On Mon, 6 Mar 2006 10:44:38 -0500, "Andy Bullington"
wrote:

I'm really interested in building the product detector and second and third
mixers for my R4C as described in the recent QEX article. My question is
(and please pardon my ignorance) in 2 places an SN 602 IC is called for but
I can find no trace of such a component anywhere. Is the SA 602 or NE 602
the same? I'm a ham but a musician by trade and learning this stuff as I go.
Thanks in advance.
Andy W1AWB

Looked at the article and it's a misprint, NE/SA602 are the same
thing. The true believers will argue they are not identical but,
for R4C service they are interchangeable.

Allison

They come off the same production line, but one has been tested over a
wider temperature range. Generally the looser specced parts from any
semiconductor vendor are either untested at the tighter spec (and may
work there) or are rejects from the tighter spec testing but still pass
lower spec.

If you aren't going to operate where you are either shivering or baking
then the looser spec part will be fine.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

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