Account Options

  1. Sign in
The old Google Groups will be going away soon, but your browser is incompatible with the new version.
Google Groups Home
« Groups Home
24hoursupport.helpdesk
+ new post
About this group
Subscribe to this group
This is a Usenet group - learn more
Message from discussion Using mobile phone as an internet radio
The group you are posting to is a Usenet group. Messages posted to this group will make your email address visible to anyone on the Internet.
Your reply message has not been sent.
Your post was successful
 
From:
To:
Cc:
Followup To:
Add Cc | Add Followup-to | Edit Subject
Subject:
Validation:
For verification purposes please type the characters you see in the picture below or the numbers you hear by clicking the accessibility icon. Listen and type the numbers you hear
 
George Herold  
View profile  
 More options Oct 11 2012, 8:55 am
Newsgroups: uk.tech.digital-tv, 24hoursupport.helpdesk, uk.telecom.mobile, sci.electronics.basics, sci.electronics.repair
From: George Herold <gher...@teachspin.com>
Date: Thu, 11 Oct 2012 05:55:15 -0700 (PDT)
Local: Thurs, Oct 11 2012 8:55 am
Subject: Re: Using mobile phone as an internet radio
Print | View thread | Show original | Report this message | Find messages by this author
On Oct 10, 11:50 pm, Jeff Liebermann <je...@cruzio.com> wrote:

> On Mon, 8 Oct 2012 06:27:05 -0700 (PDT), George Herold

> <gher...@teachspin.com> wrote:
> >Hi SEB.  Well I sent an email to Don klipstein on this topic.  And
> >have permission to copy his reply.
> ><from Don K. below>
> >2:  In incandescent traffic signals, the bulbs for yellow last
> >longer than for red and green.  So even after being switched on
> >and off about a million times, on-time is still a significant
> >factor in life expectancy.

> That means for my proposed test comparing a 50% duty cycle flashing
> light bulb, with one that is on continuously, the continuous light
> bulb will burn out first.  That's the opposite of what I saw with the
> theater marquee bulbs.  Now, I'm really tempted to run the experiment.

Experiments can be very useful.
I'd worry most about how you turn on the bulbs.
Maybe just some simple relays?

1,000 hours isn't all that long.  (or are you going to over-voltage
the bulbs?)
I guess I'd want at least 10 bulbs in each group.  Say 60 watts.....
1200 kW-hrs.

That's looking like more money than I'd want to spend on the
electricity.

George H.

> --
> Jeff Liebermann     je...@cruzio.com
> 150 Felker St #D    http://www.LearnByDestroying.com
> Santa Cruz CA 95060http://802.11junk.com
> Skype: JeffLiebermann     AE6KS    831-336-2558


 
You must Sign in before you can post messages.
To post a message you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.
Create a group - Google Groups - Google Home - Terms of Service - Privacy Policy
©2013 Google