[Ross D Matheson]

Are there any here who know this instrument, or know who might know whether it
could be used for more general audio work, beyond the commented link in this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

Thanks! ;=})

Ross in nz, not zz!
--
"We do not fear being called meticulous, inclining as we do to the view that
only the exhaustive can be truly interesting."
Thomas Man, 'The Magic Mountain'

[Don Pearce]

On Wed, 23 Jan 2008 00:52:50 +1300, Ross D Matheson
wrote:

Are there any here who know this instrument, or know who might know whether it
could be used for more general audio work, beyond the commented link in this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

Thanks! ;=})

Ross in nz, not zz!

Frankly, you will do a far better, more useful and more accurate job
with a sound card in a PC. This is really of historic interest only.

d

--
Pearce Consulting
http://www.pearce.uk.com

[Ross D. Matheson]

(Don Pearce) in
:
On Wed, 23 Jan 2008 00:52:50 +1300, Ross D Matheson
wrote:

Are there any here who know this instrument, or know who might know whether it
could be used for more general audio work, beyond the commented link in this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

Thanks! ;=})

Ross in nz, not zz!

Frankly, you will do a far better, more useful and more accurate job
with a sound card in a PC. This is really of historic interest only.

d

Well thanks Don!

It really was just out of interest, (but I am danger of collecting too much
old stuff already, like valve tech gear & ham transceivers, so appreciated!)
and I'm already interested in the possibilities of the soundcards I have. Ta!

RdM

[Serge Auckland]

"Ross D. Matheson" wrote in message
...
(Don Pearce) in
:
On Wed, 23 Jan 2008 00:52:50 +1300, Ross D Matheson
wrote:

Are there any here who know this instrument, or know who might know
whether it
could be used for more general audio work, beyond the commented link in
this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

Thanks! ;=})

Ross in nz, not zz!

Frankly, you will do a far better, more useful and more accurate job
with a sound card in a PC. This is really of historic interest only.

d

Well thanks Don!

It really was just out of interest, (but I am danger of collecting too
much
old stuff already, like valve tech gear & ham transceivers, so
appreciated!)
and I'm already interested in the possibilities of the soundcards I have.
Ta!

RdM

Adding to Don's very apposite comment, try the RightMark Audio Analyser
software. It works with any sound card and provides either live measurements
or you can record the tests and analyse off-line, so to speak.

http://audio.rightmark.org

S.



--
http://audiopages.googlepages.com

[Ross Matheson]

"Serge Auckland" in
:

"Ross D. Matheson" wrote in message
...
(Don Pearce) in
:
On Wed, 23 Jan 2008 00:52:50 +1300, Ross D Matheson
wrote:

Are there any here who know this instrument, or know who might know
whether it
could be used for more general audio work, beyond the commented link in
this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

Thanks! ;=})

Ross in nz, not zz!

Frankly, you will do a far better, more useful and more accurate job
with a sound card in a PC. This is really of historic interest only.

d

Well thanks Don!

It really was just out of interest, (but I am danger of collecting too
much
old stuff already, like valve tech gear & ham transceivers, so
appreciated!)
and I'm already interested in the possibilities of the soundcards I have.
Ta!

RdM

Adding to Don's very apposite comment, try the RightMark Audio Analyser
software. It works with any sound card and provides either live measurements
or you can record the tests and analyse off-line, so to speak.

http://audio.rightmark.org

S.

I have downloaded it recently on a networked XP PC but not yet installed it.
[and lots of other programs!] I appreciate the advice, and am already
following it, but I still (for curiousities sake) wondered how much it did.

Museum material? Or is that even unkind to the museum ... ?

I thought I might link these comments back to the auction:- for the vendor!

And viewers.

[John Byrns]

In article ,
Ross D Matheson wrote:

Are there any here who know this instrument, or know who might know whether it
could be used for more general audio work, beyond the commented link in this?

Bruel & Kjaer 2107 Frequency Analyzer
http://www.trademe.co.nz/Browse/List...x?id=136643465

That's really neat, I know something about this instrument but not much
anymore. Forty odd years ago when I was a young wet behind the ears
audio equipment designer we had a Bruel & Kjaer test system of which
this instrument was one part, unfortunately I have forgotten probably
98% of what I once knew. The system consisted of at least three parts,
maybe more that I have forgotten about, all mounted in a rack. First
there was an oscillator like this one, second there was a tracking
filter which had a fractional octave bandwidth, although I forget the
fraction, and finally there was a chart recorder. These parts were all
linked together by a chain drive of some sort IIRC so that they all
tracked one another for making various measurements. The simplest test
would be a frequency response run using the oscillator and the chart
recorder. The chart recorder also worked with a CBS test record for
testing phono pickups, and I used it in this mode to test a lot of phono
pickups.

I'm not sure of what use what the oscillator by itself would be, which
is what the auction appears to be for?


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/

[Dave Plowman (News)]

In article ,
John Byrns wrote:
I'm not sure of what use what the oscillator by itself would be, which
is what the auction appears to be for?

I don't know this actual equipment, and the pic isn't high enough res. to
tell, but it looks like a combined oscillator and audio level measuring
meter - rather like the Ferrograph test set that we lesser mortals got to
play with. Which I still use for many things - despite modern devices
being smaller and more accurate. At least it doesn't have a keyboard or
mouse. ;-)

--
*Remember not to forget that which you do not need to know.*

Dave Plowman London SW
To e-mail, change noise into sound.

[Chris Morriss]

In message , "Dave Plowman (News)"
writes
In article ,
John Byrns wrote:
I'm not sure of what use what the oscillator by itself would be, which
is what the auction appears to be for?

I don't know this actual equipment, and the pic isn't high enough res. to
tell, but it looks like a combined oscillator and audio level measuring
meter - rather like the Ferrograph test set that we lesser mortals got to
play with. Which I still use for many things - despite modern devices
being smaller and more accurate. At least it doesn't have a keyboard or
mouse. ;-)


It's combined oscillator and selective-level-meter. As Don said, it's
only of historic interest now, but like most early B&K kit, the build
quality is superb.
--
Chris Morriss

[Dave Plowman (News)]

In article ,
Chris Morriss wrote:
It's combined oscillator and selective-level-meter. As Don said, it's
only of historic interest now, but like most early B&K kit, the build
quality is superb.

You say only of historic interest but it might be easier to use on the
bench than setting up a PC there.

I find my Ferrograph very useful for all number of things - after all it
was used for audio setting up and measurement in the '80s and those
standards are still good enough for many things today. Not lab standard
measurement for sure, but day to day stuff. And it's built like a tank -
unlike a PC sound card. I'd say the same applies to the B&K.

--
*What was the best thing before sliced bread?

Dave Plowman London SW
To e-mail, change noise into sound.