Instructables
Picture of Vintage Eprom Memory Bracelet

E(Erasable) P(Programmable) R(Read) O(Only) M(Memory)

Ceramic Eprom memory chips are too cool to plunder for their gold substrate.

So I wrapped their little legs around aluminum tubes, lashed them together with wire and secured it all with a strong magnetic clasp.

Don't let your memory get lost, wear it on your wrist and proudly show it off to everyone!

My Etsy shop if you don't want to make it yourself:

UpcycleBeautifully

 
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Step 1: Tools and supplies

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Supllies/Parts

Eproms: they come in many different sizes, so you'll have to try them out to determine how many to use.

Hobby tubing: very small diameter, I used K&S 1/16" outer diameter aluminum.

Knitting needle: slightly larger diameter than the tubing.

28-30 gauge wire, just so it goes through the tubing and is easy to wrap around the IC legs.

Clasp

Tools:

Cutters

Smooth jawed pliers

File

Scale/Ruler

Step 2: Wrap leads around the knitting needle

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Form the leads around the knitting needle.

If the leads are too long to wrap neatly you can bend the tips over as in the first pic before wrapping around the needle.

Repeat.

Step 3: Cut tubing

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Measure how long to cut your tubing.

Cut it.

Don't panic, just file it and the little hole will reappear.

Repeat.

Step 4: Mesh them together

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Alternate which leg goes up (1st or 2nd) so that they can mesh together easily.
They will still not be lined up with each other on the top and bottom. (I couldn't figure a way to do that) Then gently work the knitting needle through the two sets of legs.

Remove knitting needle and insert cut and filed tubing.

Step 5: Wire them together

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Cut length of wire.

Insert through tubing and wrap onto IC legs.

This is to prevent the tubing from trying to get away.

Step 6: Measure and decide

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Measure the length of the almost bracelet.

As you can see the Eproms and clasp I used did not give much customization potential.

9 chips = 7" wrist

10 chips = 7 3/4" wrist

11 chips would probably = 8 1/2" wrist

Step 7: Wire Clasp to chips

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Cut a length of wire, loop through clasp and secure.

Try to end the wire on top of the clasp so it doesn't poke you.

The chips won't always line up evenly, so after securing one side of the clasp bring the ends together to determine where to wire the other side.

Hook it up.

Step 8: Admire your handiwork

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Cool, huh?!!!

Love those little windows.

craftclarity3 months ago

Clever! I like the way you tied them together.

cpurola (author)  craftclarity3 months ago
Thanks!
I checked out your instructables and love the wood stands.
The laptop one would work great with a separate keyboard.
(like my ibm model M clicky!)
dcp4 months ago

It is neat to reuse old electronics.

Here is my effort...

CuffLinks.jpg
cpurola (author)  dcp4 months ago

Those are cool!

gadget-man4 months ago

That's a really cool bracelet, you have my vote.

cpurola (author)  gadget-man4 months ago

Thanks!

I love your vacuum form machine and want one!

sle54 months ago

Hey! Great work. Be careful of parts aren't RoHS compliant :(

cpurola (author)  sle54 months ago

Thanks!

Parts can be painted with clear nail polish if lead is a concern.

andrea biffi4 months ago

that's great!! too bad leaving those beautiful old components unused in a drawer...

cpurola (author)  andrea biffi4 months ago

Thanks! I see you love the old nixies too. :)

I'm completely addicted to them ;-)

Victor8o54 months ago

Those are some really nice looking chips, you should enter the green electronics contest, in any case you have my vote.

I also made a keyring attachment with an old chip:

DSC_0835.jpg
cpurola (author)  Victor8o54 months ago

Love your key-fob. I have a few of those chips too, but not enough for a bracelet... yet.

I totally loved it :). thank you for sharing.

cpurola (author)  Tarun Upadhyaya4 months ago

Thanks! I love your fuse earrings.

Honus4 months ago

Very cool!

cpurola (author)  Honus4 months ago

Thanks! Your stuff is awesome too!