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Going away

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Project by oldnovice posted 04-01-2018 10:45 PM 1144 views 0 times favorited 5 comments Add to Favorites Watch
Going away
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When I was working in northern Illinois most of my colleagues knew I was a woodworker and because of that I received request for employee or family gifts for various occasions which, in many cases, were going away gifts. I posted one of the going away gifts on Lumberjocks back in August of 2012 (http://lumberjocks.com/projects/68907) which was one of the most complex and atypical. This post is one of the least complex but had to be done in two days.

This project was a going away gift for our technician who built test circuits by breadboarding them for test purposes which in some cases included memory circuits such as the Intel 1702A EPROM.

BREADBOARD
The term breadboard (https://en.m.wikipedia.org/wiki/Breadboard) has changed over the years, originally it was a board to cut bread and also used to build circuits (by driving nails or screws into the board, attach wires as tie point, and solder components) in lieu of anything better. Today there are many commercially available solderless breadboards.

EPROM
This was one of the first EPROMs (Erasable Programmable Read-only Memory) that was available in the early 1970’s. The 1702A was a 2,048-bit (256×8) in a ceramic package with a small quartz window to admit UV light for erasure.

The mounted EPROM Contained all of the names of the members of the department and was signed by those that were available at the time.

My wife had an slightly used breadboard that just needed some sanding to revive it. After sanding I routed a cup into the breadboard, installed a label, the memory circuit, topped off the cup with Plexiglas, and glue/sealed it with silicone. The department manager took the breadboard around for signatures and returned it to me to add a couple coats of lacquer.

Simple and fast all accomplished in two days after work!

-- "It's fine in practise but it will never work in theory"





5 comments so far

View anthm27's profile

anthm27

1721 posts in 1880 days


#1 posted 04-02-2018 12:08 AM

Great idea , Breadboard with a twist, great stuff. Marci will be thrilled.

-- There is no hope for any of us if we keep apologizing for telling the truth.

View Ivan's profile

Ivan

15951 posts in 3638 days


#2 posted 04-02-2018 04:56 AM

I consider this as one very serious project which was very well and clever done.

-- Ivan, Croatia, Wooddicted

View Dutchy's profile (online now)

Dutchy

3725 posts in 2938 days


#3 posted 04-02-2018 06:42 AM

View helluvawreck's profile

helluvawreck

32122 posts in 3637 days


#4 posted 04-02-2018 12:41 PM

Great story and a beautiful gift! You did a wonderful job on this.

-- helluvawreck aka Charles, http://woodworkingexpo.wordpress.com

View oldnovice's profile

oldnovice

7556 posts in 4138 days


#5 posted 04-02-2018 06:23 PM

Thanks everyone!
The project was simple but the description went ”overboard”!

-- "It's fine in practise but it will never work in theory"

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