Search found 385 matches

by Dave Dixon
Mon Mar 07, 2005 2:50 pm
Forum: General Discussion
Topic: Source for "bump-resistant" SPDT switch?
Replies: 10
Views: 4237

Re: Source for "bump-resistant" SPDT switch?

Just curious.....
Which one?
Dave
by Dave Dixon
Mon Mar 07, 2005 11:07 am
Forum: General Discussion
Topic: Source for "bump-resistant" SPDT switch?
Replies: 10
Views: 4237

Re: Source for "bump-resistant" SPDT switch?

I've used Alcoswitch (Tyco) MTL series before on an electric guitar. It's a small toggle, but you must pull out on the lever to change positions. Won't move when it is accidently hit. About ten dollars at Newark. Tyco has lots of distributors though. Let me know if you need further info. Regards, Dave
by Dave Dixon
Fri Mar 04, 2005 6:18 am
Forum: General Discussion
Topic: favorite suppliers?
Replies: 23
Views: 9100

Re: favorite suppliers?

Edmund Industrial Optics also has a cool "wish book". All kinds of lenses, lasers, and fun stuff.
Dave
by Dave Dixon
Thu Mar 03, 2005 6:20 am
Forum: General Discussion
Topic: any info on a sharp IC "IR2406"
Replies: 2
Views: 1667

Re: any info on a sharp IC "IR2406"

Ray, That was a tough one. I couldn't find anything on my extensive searches thru the net. Thank God for my library! I have a 1985 Sharp Databook with the IR2406. I'll be happy to PDF the three pages and email to you. Is your hotmail address still active? Let me know where to send it. take care, Dave
by Dave Dixon
Wed Feb 23, 2005 11:19 am
Forum: General Discussion
Topic: non-polar capasitor value reading
Replies: 17
Views: 8985

Re: non-polar capasitor value reading

Did my last post answer your question?? Except of course, you should be able to infer that the 223K100V is a 22,000pF = 0.22uF 10% 100V (not listed in your original question). Respectfully,
Dave
by Dave Dixon
Wed Feb 23, 2005 6:37 am
Forum: General Discussion
Topic: non-polar capasitor value reading
Replies: 17
Views: 8985

Re: non-polar capasitor value reading

By George, I think I've got it! Thanks Dean. I know (or knew) all of that stuff, but I've never seen it all in one place and stated so clear. From your post I would gather..... 2A472J = 4700pF = .0047uF 5% 2A104K = 100,000pF = 0.1uF 10% 2A104J = 100,000pF = 0.1uF 5% 2A103J = 10,000pF = 0.01uF 5% 100...
by Dave Dixon
Fri Feb 11, 2005 7:40 am
Forum: General Discussion
Topic: looking for a voltage tester
Replies: 15
Views: 6010

Re: looking for a voltage tester

Tenma has a cool circuit tester I have used before. It just has lights for checking polarity and GFI circuitry. If you "duct taped" an analog meter to it... you could tell your boss that you checked voltage, polarity, GFI(If applicable) and promise that there is no incoming interference fr...
by Dave Dixon
Fri Feb 11, 2005 7:14 am
Forum: General Discussion
Topic: looking for a voltage tester
Replies: 15
Views: 6010

Re: looking for a voltage tester

Newark has a "Jewell" analog meter. It's 1-1/2 inch square. Is 5% of full scale accurate enough?
P.N. is OMS-AW-150-U or OMS-AW-300-U for $19.00.
Otherwise, I'd buy a cheap credit card sized digital MM and use duct tape and bailing wire to attach a plug to it!!!
Good luck,
Dave
by Dave Dixon
Fri Feb 11, 2005 5:39 am
Forum: General Discussion
Topic: Component sources
Replies: 11
Views: 5651

Re: Component sources

Old Thread... back to the top of the list for Philba's use! IMHO Newark (yeah, I know, In One) rocks!
Dave<p>[ February 11, 2005: Message edited by: Dave Dixon ]</p>
by Dave Dixon
Wed Feb 09, 2005 11:24 am
Forum: General Discussion
Topic: Battery check
Replies: 11
Views: 4705

Re: Battery check

I agree with JWAX. Maxim has a ton of voltage monitoring devices that are super super small.
They are also pretty good about sampling.
Best of luck,
Dave
BTW - the above link didn't work for me.<p>[ February 09, 2005: Message edited by: Dave Dixon ]</p>
by Dave Dixon
Tue Feb 08, 2005 11:31 am
Forum: General Discussion
Topic: Voltage Ladder
Replies: 8
Views: 3966

Re: Voltage Ladder

Stun Gun projects utilize the same sort of circuit. At least the one I built did many years ago. Adding more and more caps and diodes was a cheap and fun way to get more and more excitement/danger.
Good luck,
Dave N0QOF
by Dave Dixon
Fri Feb 04, 2005 1:27 pm
Forum: General Discussion
Topic: school projects
Replies: 23
Views: 9465

Re: school projects

Dean, I try not to reply when I have nothing additional to contribute. In this case I have to reply. Thanks for the very well written post that echoes my sentiments exactly! Kudos, Dave (9 minutes 'till quitting time on a Friday!!!) 5PM Central...Despite the time shown above!!!<p>[ February 04, 2005...
by Dave Dixon
Tue Feb 01, 2005 1:32 pm
Forum: General Discussion
Topic: LM34 & LM35 sensors
Replies: 13
Views: 4933

Re: LM34 & LM35 sensors

Does this help any? Are you referring to the marking on the parts?
National Marking Specs<p>Good luck!
Dave
by Dave Dixon
Fri Jan 21, 2005 1:04 pm
Forum: General Discussion
Topic: symbol test - ignore
Replies: 21
Views: 9027

Re: symbol test - ignore

234 Ω
243 ≤
241 ±
251 √
227 π (supposed to be PI)
Just my 2 ¢
Happy Friday!<p>[ January 21, 2005: Message edited by: Dave Dixon ]</p>
by Dave Dixon
Fri Jan 21, 2005 9:32 am
Forum: General Discussion
Topic: 18 Led's powered by 12vdc
Replies: 30
Views: 13223

Re: 18 Led's powered by 12vdc

Whoops, I should have been more specific. I'm not a morning person!! I meant to say a ZENER diode (5.6V) Parallel anode to cathode/cathode to anode. In normal operation, the diode doesn't conduct, just the LED does. If the LED becomes an "open" then the diode (less the diode drop) lets cur...