The Great Internet Migratory Box of Electronic Junk [TGIMBOEJ]

Red 7 Segment Displays

Over the weekend, I received one (1) box of electronic junk. Not just any box of electronic junk (as I have many of those, as it is), but one Great Internet Migratory Box of Electronic Junk.

As per the TGIMBOEJ rules, I took some junk treasures and replaced it with a bunch of my own junk stuff.

And, as per the rules, I took a handful of photos of some of the stuff I pulled out. Not all.

I did not take photos of the stuff I put in. That is for the next person on the list to discover fully. Some vague clues, though: I added some antique semiconductors, some power management related componentry, some completely random small bits of goodness, a working caseless gigabit switch, and a purely mechanical device that is gloriously elegant in its implementation. And some other stuff, too.

More TGIMBOEJ pr0n on the click through….

Golden Towers

I have no need — have many already — of the parts pictured at right. But I don’t have them in such an elegant construct.

Thus, I took this vague photo and put the assembly back. It is quite solidly built and, better yet, the individual components are quite easily removed, should one desire.

Switching Jack

This is a quarter-inch jack that was likely designed to be used on a mid-70s receiver.

Note the gracefully curved arms with the little plastic nubs at the end.

When you plug a 1/4″ jack into said device, it not only connects the signal lines to the jack but it also actively disconnects the signals from other pins on the jack!

Simple and elegant design. Beyond elegant, it is just terribly pleasant to look at. I don’t believe I could ever install such a thing behind a panel.

I should snap another picture with a jack inserted, to see the change.

Hex Switch
Self Documenting Electronics

This is the real treasure that I claimed, though.

It is a 32 bit hexadecimal entry switch assembly. Beyond that, it is obviously completely modular. Take those screws out along the top and bottom and the whole thing could be reconfigured.

It has an extremely solid feel. You know when you have changed a switch’s value by the solid thunk it makes as it lands in a new position.

This is one seriously well made bit of equipment.

Well made right down to the fact that it is self documenting!

Lifting one of the edge connectors slightly off the boards at the back of the assembly reveals numeric labels.

The C is the common connection. The 1,2,4,8 are — obviously — individual bits that are turned on/off depending on the value of the rotary switch.

Now, seems a little odd that each switch would have two wires for one bit value. Not so fast– the numbers on the right have little lines over them to indicate that the value on the right will be the inverse of the values on the left.


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5 Responses to “The Great Internet Migratory Box of Electronic Junk [TGIMBOEJ]”

  1. Neil says:

    I second that awesome, love these evil mad scientist guys!

  2. n[ate]vw says:

    If I were a bit more ambitious and creative like this, I could have started the Migratory Trailer of Electronic Junk last week. Sorting through my dad’s shed was quite the experience — some devices probably deserved a better home than the salvage yard, other gadgets were already a home of their own to guests more organic.

  3. Mark Boszko says:

    That normalled 1/4″ TS jack is gorgeous. Seems like the sort of thing you’d used to see inside audio patchbays. Just TS, though, so it’s an unbalanced mono signal, might have been from a telephone patchbay.

  4. Sam Marquiss says:

    The Hex Switch and 1/4 phono jack were from my 74 yr. old Electrical Engineering dad who was cleaning out the garage of stuff which at the same time EMS was coming up with the box idea, and I gave them a few boxes to start off with. Thanks goodness it didn’t stay in my garage for the next quarter century. The phono jack was left over from a rock band amp he was helping me build in 74, and the hex switch left over from Radar tracking equipment he was working on to support the launches from Cape Canaveral in the 60s, 70s and 80s. It made him really happy when I told him that someone else besides him and me appreciated stuff too good to toss in the bin.

  5. Texas Junk Yards says:

    Wohoo! “The Hex Switch and 1/4 phono jack were from my 74 yr. old Electrical Engineering dad” this got me. My dad keeps everything.. uses around 1% of it but when he does , i sure makes him happy!

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