Author: Dave Farquhar

Replacing old Lionel DC transformers

Dave Farquhar Toy trains , , , , ,
Replacing old Lionel DC transformers

For a while in the 1970s and 1980s, Lionel used DC power in its least expensive O27 electric train sets. They stopped this practice in the mid 1980s, but there are still plenty of those sets kicking around in basements or attics and on the secondary market. They tend to be very inexpensive, especially compared to new sets on the market today.

Here’s how to figure out what you have, and track down a suitable replacement. AC and DC power supplies are not interchangeable, and you can seriously damage your train if you use the wrong kind. Trying to run a DC train on AC results in a train that won’t move and makes a ton of noise.

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SSDs and built-in encryption–and how to enable it

Dave Farquhar Hardware, security , , , , ,

Update: This entry was based on preliminary information that turned out to be incorrect. Please see the following update.

One of the last knocks on SSD performance is that they don’t perform well with full-drive encryption. But on Sandforce 1200- and 2200-based drives, and the next-generation Intel 320 drives introduced today, that’s not an issue anymore. Encryption happens on the drive, in hardware, with no performance penalty.

The problem was that nobody talked about how it works. I found the details buried in Anandtech‘s review of the Intel 320 drive. The takeaway is this: If you set your BIOS password, the drive will be unreadable if you remove it and put it in another system. Update: No it won’t. But you can add ATA password support, under some circumstances.
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So why didn’t Commodore make the Commodore 128 differently?

Dave Farquhar Retro Computing
So why didn’t Commodore make the Commodore 128 differently?

I grew up on the Commodore 128. We got one for Christmas 1985 (an upgrade from a Commodore 64). It was a bit of a quirky machine, but I liked it.

On the retro computing forums, it might be the most controversial thing Commodore ever did. Which says something, seeing as some computer historians have summed up Commodore’s history in four words: Irving Gould‘s stock scam. But that’s another story.

The cool thing about Commodore was that its engineers weren’t shy about talking about their projects. Bil Herd, Fred Bowen, and Dave Haynie have all weighed in over the years, talking about what they did and why and what they would have done differently.

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My connection to the new center of the U.S. population

Dave Farquhar Genealogy , , ,

The new population center of the United States is a town I’m sure you’ve never heard of before, though I have. It’s Plato, Mo., a town 22 winding miles southwest of Fort Leonard Wood. The population is 109, up from 74 in 2000.

As you approach Plato from the east on Missouri 32, you pass a road on the right called Groves Drive. My great grandmother was a Groves. The next street on the right is called Kimrey Drive. My great grandfather was a Kimrey. They both lived and died in Plato. I’m probably exaggerating if I say I’m related to all 109 residents of Plato, but I’m related to a sizable percentage of the people who live there, and perhaps an even more sizable percentage of the people buried in the cemetery there.
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Is it OK to paint an AC adapter?

Dave Farquhar Hardware

I got a weird question the other day. Is it OK to paint an AC adapter? Or: Can you paint an AC adapter?

I wouldn’t. For a couple of reasons. Read more

I have a job.

Dave Farquhar Personal

I have a job. That’s a good thing, because for about three hours today, that was in doubt.

It was nothing personal. My whole office was out of work for that three hours. It turned out to be an administrative error. I’m not quite sure how an administrative error leads to an entire office being let go for three hours, but maybe I’ll understand when I’m older. And Mike Judge, if you’re out there anywhere, I can tell you some stories that make Office Space seem positively tame.

I’ve had worse days than this. Definitely.

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Firefox 4 is out

Dave Farquhar Uncategorized , , , ,

And although Firefox 4 isn’t officially released until tomorrow, copies have leaked out via FTP staging servers. I grabbed a copy from betanews to do my upgrade early.

I’ve played with pre-release versions, so no real surprises. It’s quick. The look changed quite a bit, but you can easily configure it to look like older versions if you want. I did on my desktop; on a netbook I might not.

If you’ve liked Firefox all along, you’ll like Firefox 4. If you’ve preferred IE or Chrome up to this point, I don’t think Firefox 4 changes enough to change your mind on that. It has a faster Javascript engine and makes better use of graphics hardware on Windows Vista or 7, but aside from that, it’s still the same basic browser. IE9 has all that too, and Chrome has fast Javascript and isn’t far behind with graphics acceleration of its own. Of course Firefox and Chrome have the advantage that they’ll still run under XP. I think Firefox 4 will even run under Windows 2000, if you’re still using that for some reason.

I like it, but I was using it when it was still a side project called Phoenix. Then it was Firebird. Then it became Firefox.

AT&T buying T-Mobile isn’t good for anyone but AT&T

Dave Farquhar Uncategorized , , , ,

I suspect AT&T is going to be allowed to swallow up T-Mobile, but there’s nothing good about this.

T-Mobile survived solely on customer service and low prices. Let me tell you a story about T-Mobile.
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Upgrade and repair diary: IBM Thinkpad T30

Dave Farquhar Hardware , , , , ,

I picked up an IBM Thinkpad T30 this week. People ask me occasionally to keep an eye out for an inexpensive used laptop, and Thinkpads from 2005 or earlier are a good choice because they’re generally well built, easy to find, and most importantly, parts and information for them are plentiful if anything goes wrong.

In the case of this particular model, that’s a good thing.

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How to make a virtual DOS machine with networking

Dave Farquhar DOS, Retro Computing, Servers and Networking

If you want a virtual DOS machine running inside a modern PC operating system, with old-school networking and everything, everything you need to do it is at http://lazybrowndog.net/freedos/virtualbox/.

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