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Search: Posts Made By: Curious.George
Forum: General Computer & Tech Discussion 06-01-2020, 06:16 AM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

Any comments on "3D" (with glasses) displays on laptops? I've a business, here, looking to donate several and I'm not sure if they're worth the effort...
Forum: General Electronics Technical Discussion 06-01-2020, 06:08 AM
Replies: 1
Views: 38
Posted By Curious.George
Dimmable LED incandescent replacements

Has anyone had success using dimmable LED replacement bulbs? Which brand(s) and which dimmer(s)?

Despite using "recommended" (by lamp manufacturer) dimmers, we seem to end up with low frequency...
Forum: General Computer & Tech Discussion 05-31-2020, 01:28 AM
Replies: 4
Views: 153
Posted By Curious.George
Re: Help on replacement of touch-sensitive power button

It could also be capacitive or thermal.

Try "pushing" it with a wooden dowel (so your body heat and "load" is separated from the switch).
Forum: General Computer & Tech Discussion 05-31-2020, 01:27 AM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

The stands showed up, today, so now I'll have to figure out where to store THOSE (I'm leaving the monitors under the bed as they are already wrapped up, nicely)
Forum: General Computer & Tech Discussion 05-27-2020, 08:29 PM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

They won't be "wasted". I have two workstations each with a pair of 30's -- which is just about perfect (except for the "seam" located directly in front of me) for the uses, there (desktop...
Forum: General Computer & Tech Discussion 05-27-2020, 08:21 PM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

Of course! The four 3007's I have in use have their stands stored out in the garage while each is mounted on an articulated arm. This gives me access to the space immediately below the monitor...
Forum: General Computer & Tech Discussion 05-27-2020, 10:53 AM
Replies: 2
Views: 79
Posted By Curious.George
Forum: General Computer & Tech Discussion 05-27-2020, 01:43 AM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

Another pair of Dell 3007's that appear to work. But, no stands (WTF??!). No place to USE them so I'll have to store them as future spares. (I already have 4 in use) Of course, I'm running out of...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-26-2020, 10:43 AM
Replies: 14
Views: 240
Posted By Curious.George
Re: Laminator blows fuses and trips the mains - but not when on my ispolation transfo

+1

3A @ 220V is 660VA -- probably a sizable load for an isolation transformer. If it was fused at 5A then it is likely that it draws close to that (at least at some point in its operation).

If...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 05-24-2020, 06:02 PM
Replies: 5
Views: 144
Posted By Curious.George
Re: Soldering with a tremor.

Sorry to hear that. Apparently, about 10% of men over 50 develop ET.

(Q: have you noticed if the motion is more side-to-side than front-to-back?)



You might try to use a hot-air iron so you...
Forum: General Electronics Technical Discussion 05-24-2020, 12:18 PM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

Did you note the sentence that followed: "If you have NO experience with CPUs/software, your best bet is ..."? If you "start" your education on a PIC, you will find "real" processors to be...
Forum: General Electronics Technical Discussion 05-24-2020, 12:14 PM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

You may as well push for a 2A03! <frown>

The 6502 is almost as quirky as a PIC and omits many of the features that are now commonplace in MPUs and MCUs.

While the dual accumulator 6800 is a...
Forum: General Electronics Technical Discussion 05-24-2020, 10:33 AM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

PICs are a lousy place to start as their architecture is really quirky.

If you have NO experience with CPUs/software, your best bet is to pick one of the "classic" processors (1970-80 vintage)...
Forum: General Electronics Technical Discussion 05-24-2020, 02:32 AM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

Dunno as I have no experience with that hardware nor the "system" software.

If you have access to ALL of the sources, you might try to search for "GIMSK" anywhere in them and manually examine each...
Forum: General Computer & Tech Discussion 05-24-2020, 02:27 AM
Replies: 4
Views: 153
Posted By Curious.George
Re: Help on replacement of touch-sensitive power button

You would need to examine the design of the "button" ("surface") to determine what it is responding to -- is it sensing the warmth of a fingertip? The capacitive load of the body attached to that...
Forum: General Electronics Technical Discussion 05-23-2020, 09:10 PM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

I understand that's what you THOUGHT you were doing. But, in practice, you're NOT!



If PCIE is actually defined to be "5" (and not 00100000r2 = 0x20), then:
GIMSK &= (0 << PCIE)
is actually:...
Forum: General Electronics Technical Discussion 05-23-2020, 06:37 PM
Replies: 24
Views: 386
Posted By Curious.George
Re: Decorative Solar Lamp Question

Are you measuring the unloaded output of the panel? Or, is the load possibly dragging the output down?
Forum: General Electronics Technical Discussion 05-23-2020, 05:42 PM
Replies: 156
Views: 4,107
Posted By Curious.George
Re: Running a microcontroller in car - power supply aspects

8<

GIMSK &= (0 << PCIE); // no more Pin Change interrupts; mask them off

What do you think THIS ^ does?

8<

GIMSK |= (1 << PCIE); // unmask Pin Change interrupts; Interrupt source
Forum: Troubleshooting Audio Equipment 05-20-2020, 05:27 AM
Replies: 5
Views: 149
Posted By Curious.George
Re: New Design: Helper Board for Video Head Units

So, there's a significant "load" on that cap causing it to discharge pretty quickly. As voltage drop per-unit-time is linearly proportional to capacitance (CV=It), you can expect a factor of 470/330...
Forum: Troubleshooting Audio Equipment 05-19-2020, 11:48 PM
Replies: 5
Views: 149
Posted By Curious.George
Re: New Design: Helper Board for Video Head Units

Is there not an input or other signal on the head unit that you can use to effectively "turn it off"? Your hack seems to just let you realize you forgot to shut it off before killing the ignition...
Forum: General Computer & Tech Discussion 05-18-2020, 04:17 PM
Replies: 4
Views: 138
Posted By Curious.George
Re: IBM PC compatible: Who still uses this term?

No, but there's effectively such a clause; you don't tend to see OEMs adopting beige boxes in their PC-based product offerings (e.g., look at the cash registers at your local markets).
Forum: General Computer & Tech Discussion 05-14-2020, 10:11 PM
Replies: 19
Views: 624
Posted By Curious.George
Re: It's "patch-Tuesday", people!

I review the available updates at the time I build a machine, install what I think I need and there it stays. But, my machines don't talk to the outside world.

And, the "bugs" that I want fixed...
Forum: General Computer & Tech Discussion 05-14-2020, 10:22 AM
Replies: 19
Views: 624
Posted By Curious.George
Re: It's "patch-Tuesday", people!

So, if an update includes other "changes" that aren't strictly bug fixes or security patches but, rather, change the fundamental behavior of the system OR significant aspects of the user interface,...
Forum: General Computer & Tech Discussion 05-14-2020, 02:43 AM
Replies: 4,462
Views: 686,251
Posted By Curious.George
Re: best cheap/free scores 1.1

We see them, from time to time. But, as there is usually very little inside that can be salvaged to produce a "modern" machine (small disks, old/slow CPUs, ISA busses, etc.) they just go straight to...
Forum: General Computer & Tech Discussion 05-14-2020, 12:48 AM
Replies: 59
Views: 1,666
Posted By Curious.George
Re: New SSD hard drive in laptop computer what a difference in boot time

The question will be how much life has been used, already. Even rewriting the entire image on boot would last YEARS, given that I rarely use a laptop.

Or, I could recode the image reloader to...
Showing results 1 to 25 of 500

 
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