Poddwatt: Tube Amp With Mp3 In Mind

poddwatt

[Bruce] has designed a push-pull tube amp that has enough gain to connect to a portable audio player. The design is closely related to his OddWatt offering from a few years ago. The new amp has many redesigned circuits and the new hardware choices drop the price tag of the parts by about $50.

This little wonder pumps out 5-7 watts and [Bruce] is please with the end result. It doesn’t put out quite as much low-end as the KT88 amp we saw last year, but compared to some other iPod speaker solutions this provides stellar audio.

Bouncy IPhone Controlled Dance Lights

[youtube=http://www.youtube.com/watch?v=4GmYcn8vb1U]

[John Boiles] introduces us to dimlet, his portable network controlled light dimmer. Inside the box is a fonera 2100 router that is running openWRT connected to an unnamed AVR microcontroller. Right now, he’s controlling the unit with his iPhone. It has three modes of control; a manual “slider” mode, an accelerometer controlled “dance” mode, and a programmable “tap” mode. You can download all the source code and schematics on his site.

[via Makezine]

Ps3 Laptop Courtesy Of Ben Heck

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[Ben Heck] may be the coolest person ever (take that [Adam Savage]). You would think that after producing so many laptop versions of gaming consoles he would grow tired or we would be bored of them. But no! We love each and every new production – including his latest laptop-ified Ps3. Not too much in the terms of ‘new’ comes from his latest article, but it does reaffirm some things including: why make what you can buy, cheap foam sheet should be purchased by the ton, and use the screws from an overheated Xbox 360 when you lose the Ps3 originals. Oh, and [Adam] we were just kidding, you know we will always love you. Check out a video after the break.

[Via Ps3Mods]

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Boombox Warns Construction Ahead

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[Sam] built himself a boom box using salvaged parts and a car stereo. The case was cut using a CNC router he had access to at his school. The front panel is cut from a “Construction Ahead” road sign. The size of the case is based roughly on the rotting enclosures from which he pulled the speakers. He’s included connectors for external speakers as well as a USB charging port. The unit is powered by a gel battery and is recharged using an automotive battery charger.

A boom box lets you take the party anywhere. We like this one because of the pop art feel of the finished project.

Samsung TV Firmware Hacking

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[Erdem] is leading up the efforts to reverse engineer Samsung TV firmware with a project called SamyGo. Official Samsung firmware uses the Linux kernel, making it a familiar system to work with for many developers. So far they’ve implemented NFS and SAMBA for sharing files over the network, improved playback from USB devices, and unlocked the ability to use non-Samsung WiFi dongles.

In order to make changes to the system, you need to enable a telnet connection on the device. The SamyGo team accomplished this by changing an official version of the firmware in a hex editor to start the telnet daemon at boot time. This altered firmware is then flashed using Samsung’s built in upgrade system. Once telnet is enabled, non-official firmware can be manually flashed.

We’d love to see this project expand to other TV Brands in the future. In fact, we were looking for something like this back in June when we realized that our Sony Bravia runs a Linux kernel and can be updated via USB drive.  Be careful if you want to try this out. We can only imagine the fallout after telling your significant other that you bricked a high-priced LCD.

Radio Cabinet Media Center

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[Jon] picked up an old Philco radio from a pawn shop for $81. The electronics were shot and the controls had seen better days. So he set to work giving this old beast a makeover, turning it into a beauty of a media player.

The face plate for the controls had seen better days. His solution was to replace it, which gave him more options for mounting a display and controls. A menu system was implemented on the LCD display using a PIC18F4450 microcontroller. The chip also takes care of the three rotary encoders for the user interface and integrates the whole thing with the PC backend.

We’ll be the first to admit that a full PC is overkill in this situation. That being said, this was slow, unused system that is seeing new life. But is it worth the added noise and energy costs? Who knows, we think this leaves a lot of room for future revisions. Perhaps an NAS and wireless controls via iPhone or a similar device?

We’re a bit disappointed that [Jon] didn’t do some work to get better sound out of this. With a great big cabinet like this, the right speakers with a tube amp will produce some sweet sound. Certainly most things would be better than just using a pair of computer speakers. We’ll keep our eye out for an update that adds a tube kit to the project.

Snega2usb Preorder Now Available

[youtube=http://www.youtube.com/watch?v=ySs4cRVzPAY]

We’ve been watching the development of the snega2usb since it’s debut on Hackaday. Now it’s grown up and is ready to be manufactured. In the low quality video above [Matthias] shows some of the latest high quality additions to the board. It now has a case, shiny new firmware,  production made PCB, and game pad ports.  The snega2usb is shipping this December for those who preorder now.