I found this how-to today on the great Popular Science web site.
Now that I've read through the article - I am amazed that I've never seen these instructions written up before.
Theodore Gray, who authors their popular "Gray Matter" column, gives the full scoop on the basic materials used to construct LEDS and provides the basic instructions needed to see just how LEDS work.
OK, it is not so easy to find some synthetic silicon carbide (carborundum) laying around, but surely everyone could Read more [...]
For those of you wanting to hear just how good a custom built vacuum tube amp or console stereo will sound, here's a video from Steve at Custom Tube Art which shows the workmanship of his projects and the quality of the sound.
Steve had this to say about his latest project:
Here is a 1960's style custom console stereo I built displaying the vacuum tube amplifier right next to the Garrard type A turntable. The 807 tube amplifier has a conservative output of 30 watts per channel and uses 6SN7 and Read more [...]
Just in from our friend Steve W. in Canada (who constructs the most amazing vacuum tube amplifiers)...
The best way to describe this next amplifier is itâ€™s a Titan. It has to be the biggest, baddest, heaviest and most powerful amplifier Iâ€™ve made to date! Weighing in at just under 60 lbs. this push-pull-parallel EL-34 / 6L6 is conservatively rated at 110 watts per channel using EL-34 tubes. Capable of driving 4 or 8 ohm speakers via a switch on the back panel, this amp is Read more [...]
We continue to be amazed at the work that our friend and customer from Canada, Steve White, does.
Luckily for us, Steve graciously shares his talents by allowing us to post pictures of his recent projects.
Here's what Steve said about his console stereo:
If I were to ever to have a legacy, this project would have to be it! Ever since I was 5 years old I've wanted a console stereo. 38 years later and I finally have one.
I took 2 old Magnavox cabinets that were originally the same Read more [...]
Opening up and tearing down an IPOD Shuffle to see what's inside...
The 3rd Generation of the IPOD Shuffle is a wonder of technology....1000 songs stored in an aluminum case smaller than a disposable lighter.
Did you ever wonder what electronic components make up the guts of an IPOD Shuffle?
You might be surprised at what goes into the circuitry of the IPOD Shuffle. In descending order by percentage of cost, the main components are:
logic, memory, metals, rechargeable materials, connectors, Read more [...]
Requiring no battery, the crystal radio was one of the earliest forms of radio having been developed in the late 1800s and early 1900s. At this time the crystal radio sets were used to receive Morse code messages, but as time progressed the voice messages could also be received by such sets. This progression had much to do with an improvement in materials, which included the diodes and tuning coil. Even with an improvement in materials though, the construction of a radio set was fairly simple to Read more [...]