From: Bruce Griffiths [EMAIL PROTECTED]
Subject: Re: [time-nuts] 5060A question
Date: Tue, 08 Jan 2008 20:56:14 +1300
Message-ID: [EMAIL PROTECTED]
Dave Carlson wrote:
Hello,
Since the source of the noise is the vibration of the Hot Wire Ionizer
ribbon inside the CBT it will require
much.
-Brian, WA1ZMS
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Frequency Standards Services
Sent: Wednesday, January 02, 2008 1:21 PM
To: Time Nuts List
Subject: Re: [time-nuts] 5060A question
This was one of the reasons that HP eventually went
From: [EMAIL PROTECTED]
Subject: Re: [time-nuts] 5060A question
Date: Mon, 7 Jan 2008 20:43:55 -0500
Message-ID: [EMAIL PROTECTED]
Thanks to everyone who gave me feedback about the 2KHz whine
from my HP-5060A. It appears to be the nature of the design
and I'm not quite willing to try and re
Magnus Danielson wrote:
From: [EMAIL PROTECTED]
Subject: Re: [time-nuts] 5060A question
Date: Mon, 7 Jan 2008 20:43:55 -0500
Message-ID: [EMAIL PROTECTED]
Thanks to everyone who gave me feedback about the 2KHz whine
from my HP-5060A. It appears to be the nature of the design
and I'm
From: Bruce Griffiths [EMAIL PROTECTED]
Subject: Re: [time-nuts] 5060A question
Date: Tue, 08 Jan 2008 15:31:17 +1300
Message-ID: [EMAIL PROTECTED]
Hej Bruce,
Maybe set up a tuned box around it to cancel whine.
MVH
Magnus
Hej Magnus
Do you mean an active noise cancellation
Magnus Danielson wrote:
Hej Magnus
Do you mean an active noise cancellation system??
No, you could do that too, but I was basically refering to a simple box tuned
in size to cancel at 2 kHz. Toss in a thick cloth for additional resistive
damping.
You could even go Helmholtz if you
PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, January 07, 2008 9:58 PM
Subject: Re: [time-nuts] 5060A question
Magnus Danielson wrote:
Hej Magnus
Do you mean an active noise cancellation system??
No, you could do that too, but I
Dave Carlson wrote:
Hello,
Since the source of the noise is the vibration of the Hot Wire Ionizer
ribbon inside the CBT it will require using something other than pressure on
the outer container to snuff it out. The outer steel of the CBT is rigid.
Dave
Which is why it transmits the
In message [EMAIL PROTECTED], [EMAIL PROTECTED] writes
:
Since I got it working several years ago, my HP-5060A
has a rather loud ~2KHz audible whine coming from it.
It seems to be a result of the switching power supply
in the A20 oven controller module.
My units did the same thing, and I traced
it. It was resolved
ultimately by designing the dc Oven Controller.
Dave
- Original Message -
From: Sebastian Stolp [EMAIL PROTECTED]
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, January 02, 2008 1:41 AM
Subject: Re: [time-nuts] 5060A question
Gentlemen-
Since I got it working several years ago, my HP-5060A
has a rather loud ~2KHz audible whine coming from it.
It seems to be a result of the switching power supply
in the A20 oven controller module.
Is it worth my efforts to try and fix the problem
or have others already found a
11 matches
Mail list logo