Search found 1602 matches

by CeaSaR
Fri Sep 11, 2020 5:24 am
Forum: General Discussion
Topic: Making PCBs at Home
Replies: 11
Views: 475

Re: Making PCBs at Home

You're welcome. Just a note, the playlist I supplied shows methods with commonly available household products and usually paper that you would throw away or recycle. It's really low cost and very easily obtainable. The only thing truly needed would be a laser printer, and you can get a b/w one for u...
by CeaSaR
Thu Sep 03, 2020 12:19 pm
Forum: General Discussion
Topic: Making PCBs at Home
Replies: 11
Views: 475

Re: Making PCBs at Home

I do see that. Obviously, a scan would be required, especially for the ones he posted.
by CeaSaR
Thu Sep 03, 2020 10:45 am
Forum: General Discussion
Topic: Making PCBs at Home
Replies: 11
Views: 475

Re: Making PCBs at Home

If you check the Playlist I linked above, there are some methods that involve "everyday" chemicals to do the job. Some don't even require heat or an iron/laminator. As long as "you" use a laser printer to make the copies / prints, it should work well.
by CeaSaR
Thu Sep 03, 2020 10:30 am
Forum: General Discussion
Topic: Help with analog VU meters
Replies: 25
Views: 5654

Re: Help with analog VU meters

Been trying to listen to LOVRadio for the past month or 3 and I do believe they are "off the air". Bummer, since they played a lot of good music that you don't hear all that often. (Oh, and the commercials were a treat!) ModRob, if you are still on here, would you comment? I can't find the contact #...
by CeaSaR
Mon Aug 31, 2020 2:03 pm
Forum: General Discussion
Topic: Making PCBs at Home
Replies: 11
Views: 475

Re: Making PCBs at Home

Here's a few videos in a playlist.
by CeaSaR
Sat Aug 29, 2020 10:45 am
Forum: General Discussion
Topic: CAD File Question
Replies: 10
Views: 244

Re: CAD File Question

Lenp wrote:
Sat Aug 29, 2020 9:41 am
We've reached the technology pinnacle.
The only thing that is compatible, is incompatibility!
Yes it is!
No it isn't!
(Thank you Monty Python!)
by CeaSaR
Sat Aug 29, 2020 9:27 am
Forum: General Discussion
Topic: CAD File Question
Replies: 10
Views: 244

Re: CAD File Question

Glad you found something that worked, for the most part. There's always a glitch when you convert from one format to another, regardless of origination or destination. Yeah, it's rough when you have to work with non-CAD formats in CAD. Heck, it's even rough when you have to work with someone else's ...
by CeaSaR
Fri Aug 28, 2020 6:06 pm
Forum: General Discussion
Topic: Problem with AccessHD DTA1080 DTV Converter Box
Replies: 14
Views: 331

Re: Problem with AccessHD DTA1080 DTV Converter Box

This is just for reference since it is a very old system , but it may give some insight on what to look for.

https://www.instructables.com/id/ATARI- ... osite-mod/
by CeaSaR
Fri Aug 28, 2020 4:48 pm
Forum: General Discussion
Topic: Problem with AccessHD DTA1080 DTV Converter Box
Replies: 14
Views: 331

Re: Problem with AccessHD DTA1080 DTV Converter Box

Inside, is there a shielded box that is just before the RF output? Might be a mixer combiner that takes the A/V signals and converts them to Ch 3/4. At least that's what the old Atari consoles did.
by CeaSaR
Fri Aug 28, 2020 2:17 pm
Forum: General Discussion
Topic: CAD File Question
Replies: 10
Views: 244

Re: CAD File Question

Len, I just tried the PDF import in AutoCAD 2018, and it converted to polylines, arcs, etc. (This was with a Civil Drawing, so tons of info to parse) Now, this was from a PDF that was created by AutoCAD, so I would expect that to happen. If you want me to try with your PDFs, I can give it a go. I ca...
by CeaSaR
Thu Aug 27, 2020 5:32 pm
Forum: General Discussion
Topic: CAD File Question
Replies: 10
Views: 244

Re: CAD File Question

I'm using AutoCAD Civil3D/2018. I have yet to see a native conversion of PDF to DWG or other CAD format. However, getting a PDF that was created by AutoCAD (not a printed & scanned version) will allow you to snap to the ends of lines in the PDF. So if you align/scale it to proper size, it's a matter...
by CeaSaR
Tue Aug 18, 2020 4:20 pm
Forum: General Discussion
Topic: Skycool
Replies: 14
Views: 3119

Re: Skycool

So for all the math wizards.... If a pipe did go from earth to outer space, and your cat was blown (aka sucked) into the 'partial vacuum', what would their terminal velocity be? (Please show all work :???: ) Dare I say the big question would be: how many times does the cat twist and turn to land on...
by CeaSaR
Wed Aug 12, 2020 5:53 pm
Forum: General Discussion
Topic: Skycool
Replies: 14
Views: 3119

Re: Skycool

When I first saw this, it reminded me of a story I read years ago in Issac Azimov's Analog Magazine. Lightweight plastic film tubing that would stay "inflated" once the chimney effect was established. I think they posited that you could put a wind driven generator somewhere within that would continu...
by CeaSaR
Tue Aug 04, 2020 6:12 am
Forum: General Discussion
Topic: looking for a timer
Replies: 13
Views: 763

Re: looking for a timer

So the MPJA unit has 1 minute resolution on the output. which means you'll still need something like a 555 One-Shot set to trigger for 15 seconds on startup to drive another output for the load. It's that short on-time that is the hardest thing to deal with commercially. That's why I figured it woul...
by CeaSaR
Sun Aug 02, 2020 9:43 am
Forum: General Discussion
Topic: looking for a timer
Replies: 13
Views: 763

Re: looking for a timer

Really, it comes down to Plug-n-Play or custom. From the criteria in the OP, it seems that a custom unit, either discrete or software based would be the best option. It really depends on how accurate the time needs to be. Software is probably the most accurate and the easiest to implement for most p...