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Electronic, Mechanical, Optics, and Surplus Parts...

8/4/2013

2 Comments

 
Picture
Frequently as we make plans to start a new project or build the next gadget, we have to think about where we will acquire the necessary parts. Some of us already have boxes of stuff around, but, if you are anything like me, they are poorly organized. I know that I have at least one of everything needed but do not know where it is. So, I look around in my list of web sources for the parts and pieces. I began to assemble a list for this page but found a really good site that already had a better wheel. So, rather than reinvent said wheel, I will add a link to the site. Sometimes, it is smarter to buy first quality items, but in many cases, surplus is cheaper and will work as well. But, I use caution as there are times when surplus does not mean cheaper. So be careful when ordering surplus parts. There are some sites I use regularly and can safely recommend but will not endorse. The Electronic Goldmine has been a reliable source with frequently good buys. American Science and Surplus is good for odds and ends, bizarre, and one-of-a-kind items. They also have a fairly good selection of laboratory glassware. But, check the prices! Some are higher than at other sites. Sometimes for electronic projects in a hurry, Radio Shack is a good possibility. But, the prices are high and selection is limited. Electronic kits are also readily available if you like to solder. Velleman has the greatest choice but Carl,s Electronics is also a good choice. They provide the instruction manual in pdf for many products if you want to see how it works first and see the complexity of the build.
The site is the property of krkaplan and he has done a fantastic job of collecting sources. I clicked on several sites and the links are active. It was updated in 2012. Check out the kits section and there are many of the now defunct kit makers like Heathkit and Allied. But, these are an historical perspective and there are modern kit suppliers listed. You can find it here. A tip of the hat for Mr. Kaplan!


2 Comments
Percy Brandon Sr.(BRANDON PRODUCTIONS INC.0 link
1/24/2015 04:28:13 am

need A audo Pewer amplifier
TD A 2026 (ST8830

Reply
Ken
1/24/2015 07:49:46 am

Hi,
I was not able to find that particular amplifier chip data sheet so also unable to find the chip. However, there are many TDA amplifier chips and they are really cheap new. Ebay has many for sale. Here is a link for the TDA circuits to copy and paste and you may be able to substitute, Ken.
http://www.electroschematics.com/1192/tda-amplifier-circuits/

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    The author has an eclectic background in chemistry, electronics, writing, mental health, and community action...Ken

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