On 4/7/12 3:17 AM, Attila Kinali wrote:
On Mon, 02 Apr 2012 07:18:18 -0700
Jim Lux wrote:
John Strong's book on making stuff ("procedures in experimental
physics") probably has a lot of the details (like how they put the
reflective coating on the mirror). That book is a fascinating look at
st
On Mon, 02 Apr 2012 07:18:18 -0700
Jim Lux wrote:
> John Strong's book on making stuff ("procedures in experimental
> physics") probably has a lot of the details (like how they put the
> reflective coating on the mirror). That book is a fascinating look at
> state of the art in the early part
On 4/2/12 12:19 AM, Hal Murray wrote:
robert8...@yahoo.co.uk said:
Have a look in "The Art of Electronics" by Horrowitz& Hill (if you don't
hav a copy, you should! or try the local libary). It has a nice circuit for
this (Actually a telescope drive IIRC) type of application.
Rats. I can't f
robert8...@yahoo.co.uk said:
> Have a look in "The Art of Electronics" by Horrowitz & Hill (if you don't
> hav a copy, you should! or try the local libary). It has a nice circuit for
> this (Actually a telescope drive IIRC) type of application.
Rats. I can't find my copy.
I think the trick is t
d Mersich
To: time-nuts@febo.com
Sent: Sunday, 1 April 2012, 23:18
Subject: [time-nuts] 60Hz More or Less
My Heathkit, and other AC clocks have been broken for months now. I started
a project to figure out how bad it was. It's getting interesting as I am
approaching my goal of coding a software
That's it!!
From: Tom Van Baak
To: Discussion of precise time and frequency measurement
Sent: Sun, April 1, 2012 5:59:11 PM
Subject: Re: [time-nuts] 60Hz More or Less
> I used to have a webpage bookmarked where they did this. The author of the
>
I used to have a webpage bookmarked where they did this. The author of
the page hooked up a hydrogen maser to an HP3325b set to 60 Hz then
drove an HP bipolar amplifier with the 3325 to drive a mechanical flip
clock at 100 VAC @ 60.00 Hz. Interesting page, is billed as Worlds
most accurat
ic grid is not necessarily a good thing.
73, Eric Lemmon WB6FLY
- Original Message -
From: "Ed Mersich"
To:
Sent: Sunday, April 01, 2012 3:18 PM
Subject: [time-nuts] 60Hz More or Less
> My Heathkit, and other AC clocks have been broken for months now. I
started
> a
On 4/1/2012 3:18 PM, Ed Mersich wrote:
My Heathkit, and other AC clocks have been broken for months now. I started
a project to figure out how bad it was. It's getting interesting as I am
approaching my goal of coding a software emulation of an AC line clock.
During the process I developed a coup
Ed,
Your old signal generator frequency is regulated by stable components.
The power grid frequency cannot be regulated because it is distributed
over thousands of generators. Mathematical models are not stable, as
people switch loads on and off. Regulation is done by human dispatchers
calling ge
ginal Message -
From: "Ed Mersich"
To:
Sent: Sunday, April 01, 2012 3:18 PM
Subject: [time-nuts] 60Hz More or Less
My Heathkit, and other AC clocks have been broken for months now. I started
a project to figure out how bad it was. It's getting interesting as I am
approaching m
My Heathkit, and other AC clocks have been broken for months now. I started
a project to figure out how bad it was. It's getting interesting as I am
approaching my goal of coding a software emulation of an AC line clock.
During the process I developed a couple of web pages to help me understand
the
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