Personal computing discussed

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by SecretSquirrel
Wed Nov 20, 2019 7:29 pm
Forum: Networking
Topic: Anything to know before I take the Ubiquiti AP plunge?
Replies: 8
Views: 195

Re: Anything to know before I take the Ubiquiti AP plunge?

https://arstechnica.com/information-technology/2018/07/enterprise-wi-fi-at-home-part-two-reflecting-on-almost-three-years-with-pro-gear/?amp=1 That says it all. I like the reliability of my AP but I'm actually ready to move on. I wanted to do more but it's such a time sink to do anything beyond jus...
by SecretSquirrel
Tue Nov 19, 2019 8:18 pm
Forum: Networking
Topic: Anything to know before I take the Ubiquiti AP plunge?
Replies: 8
Views: 195

Anything to know before I take the Ubiquiti AP plunge?

My aging RT-N66U looks like it isn't up to the task anymore. Actually, it does just fine for everything but the downstairs AV setup. There are just too many APs in the neighborhood and too many walls. It can't keep a strong enough signal. It was upstairs with the rest of the computer gear and moving...
by SecretSquirrel
Sun Nov 17, 2019 7:41 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

Direct links to google images break randomly... :evil:

--SS
by SecretSquirrel
Sun Nov 17, 2019 10:14 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

I ordered everything you recommended SS, except I found this 3300uF axial lead capacitor which I felt would make organization inside the box easier (rectifier on one side of the box, converter on the other side, capacitor between them). Figured 3300uF was close enough to 4400uF, and since the conve...
by SecretSquirrel
Fri Nov 15, 2019 11:15 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

Sorry SS. Didn't see your earlier post about the DC/DC converter. I'd seen that component on browsing, and thought it seemed ideal, but I'm not sure how to select one. Thanks for the links though. That's the DC/DC converter I'd need? In case it wasn't apparent, the DC/DC converter is exactly the ki...
by SecretSquirrel
Fri Nov 15, 2019 10:38 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

I kinda figured a resistor was in the cards. My 1943 multimeter restoration isn't quite finished, so I'll try and locate a multimeter to test. Here's what I'm looking at for parts order: 1 - 35V 4700uF Capacitor = $2.03 1 - 35A, 1000V Bridge Rectifier = $2.92 probably looking at something in the 10...
by SecretSquirrel
Fri Nov 15, 2019 10:22 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

I doubt the ripple current rating of the caps will matter in this context, I wouldn't worry about it. If you'd like to avoid the added expense and complexity of a 12V step-down regulator, you will want to do 2 things: 1. Measure how much current the light draws when connected to a nominal 12V sourc...
by SecretSquirrel
Fri Nov 15, 2019 8:49 am
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

The lead I'm connecting to is designed for an AC headlight, yes. It's an "optional" accessory that comes/ came with the higher end models, but for whatever reason, they still put the strator in on the lower end ones. Unfortunately, nobody sells the actual headlight assemblies, or they're ...
by SecretSquirrel
Thu Nov 14, 2019 7:21 pm
Forum: The Back Porch
Topic: LED Light for Snowblower
Replies: 39
Views: 601

Re: LED Light for Snowblower

First questioin: does the snowblower already have lights? I live in Texas, so I don't know these things. If so, what is the voltage rating on the replacement bubs? 12V or 24V. That will give you some clue. Where does the "positive" wire go? I put it in quotes because if the voltage coming ...
by SecretSquirrel
Fri Nov 01, 2019 5:25 pm
Forum: The Back Porch
Topic: Anyone repair anything today?
Replies: 1387
Views: 125931

Re: Anyone repair anything today?

Couple of interesting repairs lately. Spent two and a half weeks down in NOLA, helping out family in the hospital. Not long before I was coming home, one of the other people there hit me up with the "Hey, would you mind looking at my computer? I think it might have a virus." Being nice, I ...
by SecretSquirrel
Sun Oct 06, 2019 11:33 am
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

For those eagerly awaiting my next attempt to prime the cabinet, you're going to have to wait a while I'm afraid. Life has intervened in a big way. My immediate family is fine, but I've got a close uncle in hospital and I've joined the care team rotation to help get some other family some rest. I'll...
by SecretSquirrel
Thu Sep 26, 2019 6:41 am
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

So I'm writing off the first primer a failure. After over a week, it's still tacky to the touch. This goes beyond the normal blocking of latex paint. Something went wrong with the first coat. So now, I get to do some more of my favorite activity -- sanding! :roll:
by SecretSquirrel
Mon Sep 16, 2019 9:11 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

Yeah, usually if you try to sand something that isn't dry yet it just gets all beady and gummy. Was the surface finish on the cabinet a bit uneven before you applied the primer? If the primer did a good job of sinking in, then I can see how you might get fibers breaking free after sanding like that...
by SecretSquirrel
Mon Sep 16, 2019 8:13 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

Great job rescuing that second PCB! This thread is one of two things keeping me coming back to the TR forums. While I haven't exactly been an active member, I have been reading TR and these forums for almost 2 decades, old habits die hard. I actually have a busted Ms Pac bootleg on the way. Someone...
by SecretSquirrel
Mon Sep 16, 2019 7:04 am
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

Ahh, makes sense given the state of tech back then and the circuit parameters. I'd be somewhat inclined to replace it with a modern switcher (not sure how much you care about sticking close to the original circuit design). There are a number of switcher conversion options. Most either remove, or by...
by SecretSquirrel
Mon Sep 16, 2019 7:02 am
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

So, when are you going to take on a Star Wars vector unit (The only cabinet I would buy if I could find a working one at an affordable price. The monitor is unobtanium.)? My wife has been asking what I'm going to do with my time when Ms Pacman is done. Not entirely sure she really wants to know the...
by SecretSquirrel
Sun Sep 15, 2019 8:31 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

Lucky you didn't fry the regulator (or worse...) with the initial mis-wiring! Any idea how much current that regulator is being asked to supply? You might be able to replace it with a simple 3-terminal regulator (7805 family or similar). Not sure why they used a 4-terminal adjustable regulator in t...
by SecretSquirrel
Sun Sep 15, 2019 5:19 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

Last weekend I put together the replacement for the voltage regulator for this board. http://kovarindustries.com/coppermine/albums/userpics/10001/normal_IMG_20190908_123249385.jpg http://kovarindustries.com/coppermine/albums/userpics/10001/normal_IMG_20190908_123259403.jpg http://kovarindustries.com...
by SecretSquirrel
Sun Sep 15, 2019 5:16 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

I continue dto fix up this board as I had time. If you look closely at some of the earlier pictures, you can see that D3/D4, the +16V rectifier diodes are mismatched. I replaced them with new 1N4004s. I'm glad I decided to as the one in the plastic case self destructed while desoldering. http://kova...
by SecretSquirrel
Sun Sep 15, 2019 5:12 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

I said in the prior post that the board was working, despite the slightly low +5V. That's kinda true. Throughout my debugging various issues, there had been intermittent graphics glitches, but they had been so quick that I couldn't really tell you what they were, other than glitches. During the tail...
by SecretSquirrel
Sun Sep 15, 2019 5:07 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

With the board working (mostly), it was time to fix up some of the other nagging problems. First, the ceramic disc caps. One was already completely busted, leaving just the legs. A couple of the others looked to be ready to give up the ghost. They all got changed out for nice, low profile, axial cer...
by SecretSquirrel
Sun Sep 15, 2019 5:04 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

The next time I had time to spend with this board this weekend. This was my starting point. http://kovarindustries.com/coppermine/albums/userpics/10001/normal_IMG_20190814_214334967.jpg I changed out the CPU and 285 socket. http://kovarindustries.com/coppermine/albums/userpics/10001/normal_IMG_20190...
by SecretSquirrel
Sun Sep 15, 2019 4:58 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

The left side is definitely nicer than the right. Priming the right side exposed spots that might need to be filled before the next layer of paint. I'll make that call after sanding. Working on the cabinet is a bit more involved and takes some time to get moving and get cleaned up. Some of the littl...
by SecretSquirrel
Sun Sep 15, 2019 4:35 pm
Forum: The Back Porch
Topic: Stumbled on a new project this weekend.
Replies: 188
Views: 15981

Re: Stumbled on a new project this weekend.

It's been a busy, busy summer -- a trip to Colorado, a trip to Costa Rica, four trips to California, an unexpected trip to New Orleans over Labor Day... I have managed to get a bit of time here and there to work on Ms Pacman. I got the pinball machine and Galaga moved upstairs to the family room. ht...
by SecretSquirrel
Sun Sep 15, 2019 10:03 am
Forum: Storage
Topic: What to do with old PATA HDD?
Replies: 10
Views: 989

Re: What to do with old PATA HDD?

Remove the platters and use them as coasters? That’s not bad. Continuing to use it as a hdd is silly given the weight and size of it vs its capacity. Blasting it makes a mess. Coasters may be the thing! I don't know. I think it would be interesting to see the effects of a 30-06 round hitting spindle.
by SecretSquirrel
Sun Aug 18, 2019 5:43 pm
Forum: The Back Porch
Topic: Anyone repair anything today?
Replies: 1387
Views: 125931

Re: Anyone repair anything today?

Today's repair project -- a stained glass lamp. Some background. As a wedding present, my mother had commissioned a beautiful, custom, hand crafted stained glass lamp. It hung in the entry way in our old house. A few years after we got married, we were having a new bed delivered and as the mattress ...
by SecretSquirrel
Sat Aug 17, 2019 8:25 am
Forum: The Back Porch
Topic: Anyone repair anything today?
Replies: 1387
Views: 125931

Re: Anyone repair anything today?

Yesterday morning when the alarm went off at 5:50AM, it felt awfully warm in the house. A quick check of the thermostat showed it was 78F (the thermostat was set for 72F). Definitely not good, considering the high was supposed to be 101F. A quick jaunt outside confirmed that the condenser wasn't run...
by SecretSquirrel
Sat Aug 10, 2019 12:35 pm
Forum: The Back Porch
Topic: Anyone repair anything today?
Replies: 1387
Views: 125931

Re: Anyone repair anything today?

A while back I put in a manifold for the compressor in my garage. Of course, it leaked. :roll: Well, today I'm running the air lines for things running off that manifold so I took the time this morning to take it down, take it apart, and address all the leaks. Remember Gerbils, if you aren't making...
by SecretSquirrel
Fri Aug 09, 2019 7:43 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56455

Re: Something's different...

I'd appreciate a bit more communication as well, but it might be a lot to ask until the last of the torches and pitchforks are put firmly away. I'm don't blame Renee if it seems like she's hiding under her desk a bit. Once bitten, twice shy and all that. Not an option you get when you take on a lea...
by SecretSquirrel
Fri Aug 09, 2019 2:02 pm
Forum: The Back Porch
Topic: Something's different...
Replies: 1461
Views: 56455

Re: Something's different...

I know that Renee was shocked and hurt by the reaction she received here. It was uncalled for, and i don't think they had a plan for it. She deserved better than she got, after all, she's simply trying to make the site profitable. A late twenty something freelance writer wihtout a deep tech backgro...
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