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Search: Posts Made By: Curious.George
Forum: General Computer & Tech Discussion 05-27-2020, 08:29 PM
Replies: 4,456
Views: 685,355
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: 4,456
Views: 685,355
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: 62
Posted By Curious.George
Forum: General Computer & Tech Discussion 05-27-2020, 01:43 AM
Replies: 4,456
Views: 685,355
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: 222
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: 119
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: 151
Views: 4,029
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: 151
Views: 4,029
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: 151
Views: 4,029
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: 151
Views: 4,029
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: 2
Views: 96
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: 151
Views: 4,029
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: 17
Views: 228
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: 151
Views: 4,029
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: 4
Views: 101
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: 4
Views: 101
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: 124
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: 601
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: 601
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: 4,456
Views: 685,355
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: 1,622
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...
Forum: General Computer & Tech Discussion 05-13-2020, 05:32 PM
Replies: 59
Views: 1,622
Posted By Curious.George
Re: New SSD hard drive in laptop computer what a difference in boot time

With the existing "spinning rust" drives, that is the case -- each boot restores a fresh copy of the OS.

But, I'd have to install that hack in any new "boot media"; so I could choose to NOT...
Forum: General Computer & Tech Discussion 05-13-2020, 05:27 PM
Replies: 19
Views: 601
Posted By Curious.George
Re: It's "patch-Tuesday", people!

But can you "pick and choose" what PARTS of the update you want? Or, is it just a giant "rollup" update -- all or nothing?
Forum: General Computer & Tech Discussion 05-13-2020, 02:28 PM
Replies: 19
Views: 601
Posted By Curious.George
Re: It's "patch-Tuesday", people!

[My boxes are all W7 and none are on-line to support automatic updates]

Does MS give you some inkling of what the updates are SUPPOSED to address? Or, is it all a matter of "trust us"...?
...
Forum: General Computer & Tech Discussion 05-12-2020, 04:58 PM
Replies: 59
Views: 1,622
Posted By Curious.George
Re: New SSD hard drive in laptop computer what a difference in boot time

Just by coincidence, I received a "care package", today, with three 250G Samsung 840EVOs. I may try installing in a couple of my "disposable" laptops to see how they fare.
Showing results 1 to 25 of 500

 
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