On Mon, 02 Apr 2012 07:18:18 -0700
Jim Lux jim...@earthlink.net 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
On 4/7/12 3:17 AM, Attila Kinali wrote:
On Mon, 02 Apr 2012 07:18:18 -0700
Jim Luxjim...@earthlink.net 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
...@comcast.net
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 emulation
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 that
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
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
Mersich wa6...@comcast.net
To: time-nuts@febo.com
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 my goal
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
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
is not necessarily a good thing.
73, Eric Lemmon WB6FLY
- Original Message -
From: Ed Mersich wa6...@comcast.net
To: time-nuts@febo.com
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
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
That's it!!
From: Tom Van Baak t...@leapsecond.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
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
12 matches
Mail list logo
