There are lots of turntables available these days to convert your vinyl to MP3 or other digital music forms, but most of them look cheap and plasticky. I have a Dual CS505 from 1982, and it cost more back then than most of the modern computer interface types do today. So, why spend about £80 when you probably already have a sound card, audio manipulating software and a good turntable. Get this phono pre-amp for less than a tenner,and end up with better results!
The unit I received said "Commtel" rather than Eagle, but was otherwise identical to the photo. It takes a 9 volt power supply to run it, either a PP3 inserted in a compartment in the bottom, or an AC adaptor supplying 9 volts to a "centre terminal positive" plug. There's a small on-off switch on the back, to save battery life. So, what's the switch on the top for? Well, look at the back, and you'll see 3 pairs of phono sockets (gold plated in appearance!) One pair is the turntable in (Moving magnet cartridges, not moving coil!) and one pair the output to your amplifier (you can use it with any amplifier with line in sockets, as well as computers). The third pair are "line in" so, whatever you used to have plugged into the device you are now feeding this amp into can be plugged into this, and selected instead of the turntable input, using that big switch on top.
Ther's a ground terminal for turntables needing one (mine does) so it's all well thought out. The sound quality is excellent, I've already made a couple of CD's from 2 of my albums, and they sound very good. You can also load the newly digitized audio into your portable digital music device. One reason I didn't want an MP3 device was that I have a Sony WALKMAN, which has Sony's superior ATRAC file compression, rather than MP3 as used by iPod and the like, so this gives my control over how I handle the audio files, all it does is feed the sound at line level into my soundcard, what I do with it then is my choice, not the turntables.