555 Projects

A few weeks back I added a few more pages related to the 555 timer. One circuit uses additional passive components to compensate for the tolerance of the external capacitor; 555 Timer Tolerance Compensation. The second page covers a Reducing Frequency 555 Oscillator. Both circuits are connected as Astable Multivibrator circuits.

Both pages were added to the engineering site map, but it does not appear that either page ever made it to this blog. I only noticed because both of those 555 pages have only received 2 visits in the last two months. It's almost like neither page has been index by Google? However I think the pages were only added 3 weeks ago.


For what ever reason my computer is slowing down to a crawl so I'll end this post and re-boot. Although I think the connection with the internet is going south. But I don't really want to reset the modem because a few of the open pages won't like it, including this blog as it auto saves about once a minute.

-- Ok that work, must have just been a memory leak.
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Resistor Networks

I went a head and added another page for a 20-pin Resistor Network. I added the link  to a number of pages in that section, so many of those pages got updated. A 20 pin through-hole DIP seems like a pretty big package for the termination the package offers, but I guess if you have the board space.... Seems like the BGA package added the other day would be a better alternative. But of course the resistor arrangement is different, at least for the example provided.

I don't know what the application is for because the resistors seem like odd values, but there must be some common usage otherwise they wouldn't make it.

So any way it looks to be about 17 pages in this section, at least with the page address starting with resistor-network. All together they bring in a few visitors to the site, and most of the pages have a 50% bounce rate.

Resistor Array BGA Package

A new page was just added to cover a BGA Resistor Array. The new Resistor Array is linked off the main Resistor Network page, which really covers a resistor network in a 16-pin DIP. I also added a link off the page covering Resistor Array Manufacturers, cause it seems like many of the other resistor network links are on that page.

I also added the page link to the SiteMap for the web site too.

None of these pages covering this topic are doing well. It could just be there is not a lot of search traffic for resistor network packages.

Looks like the last time I added a page to this topic was on Jan 12, as Resistor Networks. Then on Dec 3 as a DLCC Resistor Array. I've been slowly been added to this topic over the last few months.

I also up-dated the new Google search bar, if you happen to be following the other blog. The site search should work the same but the search bar looks a little different.

Panel Mount Fuse Holders

I added a another page the other day, but because I didn't think it would ever produce any visits I waited till today before I blogged about it. Plus I just used all the other related links in the last posting. Anyway, the new page addressed Panel Mount Fuse Holders. Much of the text is a copy from another page, so until I update the listing it will never do well.

I also added another page which contain zero text; Panel Mount Components. Not sure why I added this page, but it is a new page ~ it will be one of those pages that never gets 365 views a year, I already have to many of those.

As with the other new additions, the new page address have been added to the html sitemap. Although they will not be added to the xml sitemap used by the search engines, as I only up-load a new xml sitemap every 3 months or so. But Google should be able to find the new pages regardless.

I still have a number of pic files I want to add to the site, so the next new page address will relate to one of those graphic files I have.

Chassis Mount Fuseholders

Added a few new pages to Google-sites today to hold some graphics of; Panelmount Fuse Holders, Extractor style Fuse Holders, and a different view of a Panel-Mount fuse holder.

Now I don't normally add a blog posting for new pages to google-sites, but I had added a few new engineering pages to interface-bus and listed them within one blog posting. Not so bad but I use the Blog Archive on the left of the page to count the number of new pages. So the count is off when I add more than one page to a posting. Any how I'm using this posting to address pages on another site to make up for a lack of counting on the main site.

There are a number of pages related to Fuses on the main site, those graphics were a bit to large to add. So;
Fuse Vendors.
DC Operation of Fuses.
Fuse Holder Manufacturers.
Fuse Holders in Chassis Design.
Fuse Derating Recommendations.
Fusible Resistors.
Fuse Definition.

There my even be a few more pages related to fuses, but these have the highest ratings in a site-search. Oh the newest of the pages, Fuse Blocks, is doing the worst with only 13 page views this year. The next worst is the page relating to panel mount fuses used in chassis design.