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I just bought different issues of EE or Electronic Enthusiast at Alexan September 02. I now have this issues

Projects & Circuits Volumes
1 and 3

Electronic Enthusiasts Issues:

1. EE Issue No. 37
2. EE Issue No. 45
3. EE Issue No. 56
4. EE Issue No. 57
5. EE Issue No. 59
6. EE Issue No. 60
7. EE Issue No. 61
8. EE Issue No. 62
9. EE Issue No. 63
10. EE Issue No. 64
11. EE Issue No. 65
12. EE Issue No. 66
13. EE Issue No. 67 -
14. EE Issue No. 68
15. EE Issue No. 69 -

During high school i was always fascinated in electronic circuits. I was amazed when we created a home made amplifier and guitar effects.

I am also amazed to my neighbor’s sound system he made from he’s college school, i think it was IETI. I always wanted to create those things and really like making things with my own hands.

Add picture here hehe:

A few moths ago we reviewed a set of speakers from Altec Lansing: ATP3. We were more than satisfied about their performance, quality and design that’s why Altec took our Editors Choice prize which is not very accessible . The problem reported by many users was the unavailability of ATP3 on pricewatch. At that time those speakers have just entered the market so it was explicable. After all Altec Lansing is a very well known producer and many retailers carry their brand. Right now you can find ATP3 in many stores and even on Internet although I wouldn’t recommend ordering them online due to costs involved in shipping.
For today we have a review of the “gaming edition” of ATP3, the ATP5. Like name suggests, ATP5 differ from ATP3 mainly in numbers of speakers. There are also several differences like power, digital source support but we’ll see these in next paragraphs.

First look

ATP5 is a 4.1 speaker system solution. Briefly this means four satellites and one subwoofer designed for PC surround sound experience. Speakers are shipped in an average sized box of about 12Kgs. They are very smart packaged so box dimensions are reduced to minimum. The package contains:

- four satellites and a subwoofer
- all the necessary cables
- users guide

I wasn’t surprised about the design of the satellites simply because I have reviewed ATP3 last year, but they are really impressive. I liked that Altec Lansing provides cables for all connections: digital and analog both inputs and converters for digital inputs. The second thing I was pleased to see was the length of cables. Rear satellites have five meters long cables while front speakers have three meters long cables! I have seen lots of expensive speakers which have only two meters long rear cables.

As you can see in the left the connectivity is made on subwoofer which plays the role of “center hub”. There are two analog inputs (front – rear) and two digital. The mini DIN male jack is used for right front satellite connection which has the controls. All the connectors are color coded for an easy installation. Cables can be plugged in less than a minute due to these features. Let’s take a look to subwoofer as a hole. It is made from wood with several plastic parts. To be more precise on its base there is a plastic enclosure that holds the amplifier.

On the outside you can find the above connectors. Subwoofer is quite unconventional because in most cases the driver is placed with the membrane oriented to the ground but in ATP5 case it is placed like in any regular speaker. The design is inspired, plastic match with the wood chamber quite well. Altec engineers used huge radiators for power transistors used in amplifier design. To be more accurate, just think that all transistors are placed in line and power dissipates on a radiator as large as the subwoofer’s smaller edge. I have opened the subwoofer plastic cover and I liked the content – a perfectly isolated wood enclosure, quality electronic design and parts. Do not try to open it at home because it’s not very easy .
Subwoofer is not magnetically shielded and doesn’t have to be placed near the monitor or near other magnetic sensible equipment. Also remember to don’t place it too close to your case because especially when listening to high volume it may affect the magnetic devices inside your case, HDD for example.

source:http://www.pchardware.ro/Reviews/review.php?id=47