[time-nuts] OT Prototype Boards

Tom Miller tmiller at skylinenet.net
Tue Jun 25 00:53:32 EDT 2013


2.54 mm is exactly 0.1 inch.

Tom

----- Original Message ----- 
From: "Don Latham" <djl at montana.com>
To: "Bob Stewart" <bob at evoria.net>; "Discussion of precise time and 
frequency measurement" <time-nuts at febo.com>
Sent: Tuesday, June 25, 2013 12:37 AM
Subject: Re: [time-nuts] OT Prototype Boards


2.54 mm pitch is close enough to the .1 in "standard". The through-hole
DIP chips will fit fine.  I used to build stuff with .1 in perfboard,
sockets, and wire-wrap but only use a very few glue chips now and
pinboards.  They don't have to be shot in rockets . . .
My only bitch currently is with the absurd gaps in the Arduino boards
Grrrrrr.
Don


Bob Stewart
> I need to get some largish prototype boards for my project. Has the
> industry standardized on a 0.10" pitch for hole spacing? IOW, if the ad
> says 2.54mm pitch will I get a board that will fit American chips, or
> will I just get something metric sized for the landfill? I ask, because
> I've got a prototype board sitting around here someplace that is
> unusable because the pitch isn't quite right. Needless to say, I'm
> ordering this from ebay from a seller in China or Hong Kong or
> someplace, points East.
>
> Bob - AE6RV
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-- 
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
De Erroribus Medicorum, R. Bacon, 13th century.
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
Skype: buffler2
www.lightningforensics.com
www.sixmilesystems.com


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