Another Project Update – Headphone Tub Amp

So I received my PCB’s in the mail a week or two ago now.  They were wrong. Within the CAD drawing the actual dimensions of the board were incorrect. If you reference the picture below you will see that there are gray holes in the 4 corners. Those symbolize no copper through holes for mounting. Well the way …

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74xx Contest Prize

7400 Contest These are terrible pictures but I wanted to get something up right away to show appreciation for my prize to the 7400 folks. Now what this is, is a device that takes the 20-pin connector from a computer power supply and give you used power points to run things. As you can see there’s …

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Tube Headphone Amp ***Update***

Just a quick follow up entry to the Tube Headphone Amp project. I’ve received updates that my PCB’s are back from the fabricator and are being processed. Specifically they are cutting down the master board into the individual orders and hopefully mine will be shipping out soon. I’m really rather excited about the project. Between getting …

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Last Project of the Year-Tube Headphone Amp

This is just a little write up for you all of what I think will be my last project of the year. This one was an easy one. I did very little work on it. Mostly just a few modifications of a previous design and when everything arrives, assembly. Now as I said, not my original design …

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7400 Competition Entry – Signal Strobe

This is my entry for the 7400 Competition. This a signaling strobe, an enhanced one with a siren. My device is built off of 7400 NAND Quad Gate, 2x 7476 J/K Flip Flop, 7432 OR Quad Gate and 4x 555 Timers. Now off course there’s a few passive components like capacitors, resistor, 5 volt regulator, …

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