Search found 385 matches

by Dave Dixon
Tue Jul 14, 2009 6:56 am
Forum: General Discussion
Topic: Any adjustable voltage regulator ?...
Replies: 9
Views: 1592

Re: Any adjustable voltage regulator ?...

What choices do you have for your power supply? Wall warts, batteries, or on board with 110AC? If batteries - a piece of cake. On-board PS with 110 - another piece of cake. Otherwise - do you have room for something like the MAX739. It doesn't take many external components and handles .3 Amp. good l...
by Dave Dixon
Mon Jul 13, 2009 6:44 am
Forum: General Discussion
Topic: Any adjustable voltage regulator ?...
Replies: 9
Views: 1592

Re: Any adjustable voltage regulator ?...

Cant' think of any off hand. Is there room available to make a -1.5 volt rail? If you are using batteries, just pick off midstream for ground? Or else I think Maxim makes some IC's to get a negative supply. Sorry I wasn't more help.
by Dave Dixon
Thu May 21, 2009 4:53 am
Forum: General Discussion
Topic: Telephone Line Amplifier
Replies: 9
Views: 2107

Re: Telephone Line Amplifier

I just checked out the sandman site! That link at the bottom of the page for the "kids taseler" is something else :grin: Thanks for the laugh!
by Dave Dixon
Mon Apr 27, 2009 10:46 am
Forum: General Discussion
Topic: 28V BATTERY TO 5V / 3.3V
Replies: 11
Views: 1651

Re: 28V BATTERY TO 5V / 3.3V

Hi Tony, I'm sure this is obvious, but it's always best not to assume. An in-line fuse or equivalent short circuit protection. In the past, I have skipped that step for what I thought was "just for the time being - I'll add it later" with bad results from waiting too long to add the proper protectio...
by Dave Dixon
Thu Apr 23, 2009 5:11 am
Forum: General Discussion
Topic: Part ID needed for LCD TV Inverter board component
Replies: 4
Views: 930

Re: Part ID needed for LCD TV Inverter board component

Here is one site that has pictures of logos for identification. Hope this helps.
http://www.elnec.com/support/ic-logos/?method=logo
Dave

EDIT: Here is one more...
http://www.advanced-tech.com/ic_logos/ic_logos.htm
by Dave Dixon
Wed Apr 08, 2009 4:47 am
Forum: General Discussion
Topic: timed outlets anyone?
Replies: 6
Views: 1485

Re: timed outlets anyone?

Not very cheap, but I have used MAGNECRAFT - 821TD10H-UNI multifunction timers in some test equipment. Probably over the top for your use. 0.2% accuracy and settable from 0.1 second to 10 days!!!!! Also has a ton of switching options i.e. on delay, off delay, one shot, repeat cycle, and more. Really...
by Dave Dixon
Tue Apr 07, 2009 1:19 pm
Forum: General Discussion
Topic: Remote Control Signals, Info?
Replies: 20
Views: 2563

Re: Remote Control Signals, Info?

Hi Al, I'm not sure if you are interested, but others lurking out there may be! I had a minute to kill this afternoon. Lights off and used my cheap digital camera set to movie mode. Macro setting and focused on the Infra-red LED and recorded while I pressed a few buttons on the remote. The video cam...
by Dave Dixon
Tue Apr 07, 2009 5:00 am
Forum: General Discussion
Topic: Remote Control Signals, Info?
Replies: 20
Views: 2563

Re: Remote Control Signals, Info?

Couch Potato had some excellent info. Thanks, I learned something new this morning! A cheap way to "view" your remote control's output is to use any ole' digital camera with a viewscreen. The IR shows up nicely. At least it is a good method to see if it is operational or not. I never tried (or thoug...
by Dave Dixon
Wed Apr 01, 2009 10:43 am
Forum: General Discussion
Topic: NASA pic of the day
Replies: 5
Views: 977

NASA pic of the day

I don't usually get into the April Fool's thing, but enjoyed the text and great photo on the website I try to check every day - usually to change my wallpaper! Check out today's
http://apod.nasa.gov/apod/
by Dave Dixon
Mon Feb 16, 2009 4:28 am
Forum: General Discussion
Topic: intermittent wiper control
Replies: 19
Views: 2802

Re: intermittent wiper control

Da*n you Dean, Now I have to go out to the shed and dig through my boxes of "stuff". I built that shortwave converter installed into an old old car radio - car radio for the better signal rejection, and it worked great. A little bit later I added an SCA decoder to the same box, which worked great as...
by Dave Dixon
Fri Feb 13, 2009 2:49 pm
Forum: General Discussion
Topic: single sided PCB, where?
Replies: 17
Views: 2745

Re: single sided PCB, where?

How nice. I got a check in the mail to cover the postage and a little extra. Thank YOU Volter for the fast response.
by Dave Dixon
Fri Feb 13, 2009 11:20 am
Forum: General Discussion
Topic: intermittent wiper control
Replies: 19
Views: 2802

Re: intermittent wiper control

Excellent movie. I just saw it last weekend. When he was in his garage/basement I was telling the wife... "a capacitor, a variable resistor, and a transistor". . . Within 60 seconds, I heard him say the same thing! It is a shame that I probably couldn't have stuck it out all those years fighting. I ...
by Dave Dixon
Tue Feb 10, 2009 4:26 am
Forum: General Discussion
Topic: single sided PCB, where?
Replies: 17
Views: 2745

Re: single sided PCB, where?

Glad you got it! Gotta love this forum. Hope it works out for you,
Dave
by Dave Dixon
Fri Feb 06, 2009 11:47 am
Forum: General Discussion
Topic: single sided PCB, where?
Replies: 17
Views: 2745

Re: single sided PCB, where?

Thanks Bigglez, Not enough time in the day for me to check, but that is good info to have!

I shipped it off today to Volter- $1.85 is my cost for the shipping. A buck for my time (handling) isn't expected, but would be greatly appreciated! Best of luck,
Dave
by Dave Dixon
Fri Feb 06, 2009 4:50 am
Forum: General Discussion
Topic: single sided PCB, where?
Replies: 17
Views: 2745

Re: single sided PCB, where?

I have a piece of scrap single sided, approx. 8" X 8" X 0.062" material. I think it is 1/2 Oz copper clad, but it may be 1 Oz (not sure how to easily check the copper thickness). Email me with your location, and if you want to pay shipping, and throw an extra one dollar in for me shipping it over my...