Search found 125 matches

by Tommy volts
Thu Nov 20, 2003 8:24 am
Forum: Computer Programming
Topic: can visual basic control serial or usb port power?
Replies: 14
Views: 8061

Re: can visual basic control serial or usb port power?

Mike,<p>I built a very simple I/O with relay driven off the serial port. I used Qbasic to run the system but I'm sure you could easily convert to VB. <p>The circuit is very simple and is based on a Ray Green article in N&V several years ago. The total cost of the project is around $10 including rela...
by Tommy volts
Wed Nov 19, 2003 2:56 pm
Forum: General Discussion
Topic: Television Problem
Replies: 5
Views: 1400

Re: Television Problem

Thank you to every one who has replied!<p>I have followed through with as many of all your suggested investigations as I could.<p>Here is what I have determined:<p>1. I am convinced that the problem is internal (not external RF interference of some kind). 2. There are hundreds of possible syptoms a ...
by Tommy volts
Tue Nov 18, 2003 10:56 am
Forum: Computer Programming
Topic: can visual basic control serial or usb port power?
Replies: 14
Views: 8061

Re: can visual basic control serial or usb port power?

It is a little expensive, but the link below will take you to a real neat USB interface module with tutorial on programming it VB, C++ etc. If I had the $$ I would go for it.<p>
USB Interface
by Tommy volts
Thu Nov 13, 2003 10:07 am
Forum: General Discussion
Topic: White LED strobe
Replies: 40
Views: 8255

Re: White LED strobe

Jolly Roger<p>Did you build your strobe yet? If not, you may want to check out this kit.White LED Strobe Light Kit
by Tommy volts
Wed Nov 12, 2003 2:19 pm
Forum: General Discussion
Topic: Western Electric Phone Ringer
Replies: 3
Views: 999

Re: Western Electric Phone Ringer

Wayne, Please see the link to the "Ring Generator Circuit" above. This is what I intend on driving the ringer with. <p>To drive the ringer with that generator, if I understand you correctly, I need to:<p>1. Connect the red and black ringer wires to the generator output. 2. Place a .5mF 250 vdc capac...
by Tommy volts
Wed Nov 12, 2003 12:24 pm
Forum: General Discussion
Topic: Western Electric Phone Ringer
Replies: 3
Views: 999

Western Electric Phone Ringer

I have an old Western Electric type P3A ringer which has 4 wires on the coil (red, black, slate and slate with red stripes). Please see the pages below for information and photo.<p>I would like to ring the ringer with the Ring generator circuit also shown below.<p>My question is how do I connect the...
by Tommy volts
Fri Nov 07, 2003 10:07 am
Forum: General Discussion
Topic: Television Problem
Replies: 5
Views: 1400

Television Problem

Large Sony tv with nice clear picture and audio with the following problem:<p> At perfect cyclic timing intervals (like 3 close scratches on an LP record) three fixed "radio interference" horizontal bars appear across the screen. <p>The audio disturbance accompanies the bars. 2 of the bars are about...
by Tommy volts
Wed Nov 05, 2003 3:53 pm
Forum: General Discussion
Topic: Latch Circuit
Replies: 25
Views: 4255

Re: Latch Circuit

A slight modification to the design below should work. Close the contacts with your laser sensor circuit instead of water.<p>It has the SCR that Russ talked about for latching.<p>SCR Alarm Latch
by Tommy volts
Tue Nov 04, 2003 4:12 pm
Forum: Computer Programming
Topic: Programming on a typical computer
Replies: 8
Views: 4160

Re: Programming on a typical computer

Gentlemen:<p>I followed up on your suggestions and discovered the following link. <p>thank you.<p>Visual Basic for Applications Tutorial
by Tommy volts
Tue Nov 04, 2003 1:32 pm
Forum: General Discussion
Topic: RC reciever Help
Replies: 4
Views: 1471

Re: RC reciever Help

John Paul<p>I waited a day for some of the more experienced to reply, they haven't yet so here it goes:<p>Use your reed relay to close and open a larger one. This is a cumbersome solution but it should work.
by Tommy volts
Tue Nov 04, 2003 10:05 am
Forum: Computer Programming
Topic: Programming on a typical computer
Replies: 8
Views: 4160

Re: Programming on a typical computer

Thank you Mr. Al and Bodgy for the information which I will put to good use!<p>As for using my work(*) computer during breaks, it looks like the only programming I can do is with MS DEBUG, true? From Bodgy's description of MS DEBUG it hardly sounds like a reasonable option, but I would be willing to...
by Tommy volts
Mon Nov 03, 2003 3:19 pm
Forum: Computer Programming
Topic: Programming on a typical computer
Replies: 8
Views: 4160

Programming on a typical computer

Programming software (BASIC) came along with older DOS operated computers. You could sit down at any computer and write a program. <p>Nowadays: Programming software (VBasic, C++, Qbasic etc) is typically not on most office computers. Nor is it on the computers of typical family or freinds.<p>The bot...
by Tommy volts
Mon Oct 27, 2003 9:47 am
Forum: General Discussion
Topic: telephone interface
Replies: 6
Views: 1753

Re: telephone interface

Mr. K & Dale:<p>Thank you for your advice!<p>I built the interface and plugged it into the jack upstairs. It turns out that the jack upstairs is wired in parallel to the one in the kitchen( red & green lines).<p>It worked fine but with the following problems:<p>1. The interface exists in the "off-th...
by Tommy volts
Fri Oct 24, 2003 4:51 pm
Forum: General Discussion
Topic: telephone interface
Replies: 6
Views: 1753

telephone interface

This weekend I am going to try to build an interface circuit similar to the one presented on the web file below. <p>The question I have is:<p>Is it necessary to connect to the telephone as shown in the circuit below, or can I plug into another unused phone jack and pick up the audio signal? <p>The l...
by Tommy volts
Fri Oct 10, 2003 11:05 am
Forum: General Discussion
Topic: FIRE FLYS
Replies: 26
Views: 5836

Re: FIRE FLYS

please see my post above, how do I get a quote from josmiths post, I tried to quote his "basic stamp click basic stamp click etc." but it came out blank.