Hi Richard,

What you want is a HP 203A Function Generator, it will do what you want. You
should be able to get one on eBay.

Gary

 

 

 

 

 

From: psnlist-request@.............. [mailto:psnlist-request@...............
On Behalf Of Richard Schneider
Sent: Sunday, December 05, 2010 12:07 PM
To: PSNLIST@..............
Subject: Testing Amplifier Frequency Response

 

Hello PSN,

 

I would like to run a frequency response test of my amplifier/filter but I
only have test equipment in the 50 Hz to 50 KHz range.

 

Do any of you have a recommendation for constructing a generator that would
output DC to 5 Hz with a uniform (flat response) voltage?

 

There was a CD disc someone was selling (RefCD) at the URL below that
modulates a 1 KHz sine wave with a 1 Hz since wave. I believe the idea is to
filter out the 1 KHz signal at the output of a PC sound card. What are left
are pure VLF signals that could be used to sweep the amplifier/filter.

 

http://www.science-project.com/_members/science-projects/sponsorads/refcd/se
is.html

 

I know there are several freeware tone generators you can download, but I
don't think a PC sound card can reproduce DC to 1 Hz. Am I correct?

 

Thank you,

 

Rich

 

Hi Richard,
What you want is a HP 203A Function Generator, it will do what you =
want. You should be able to get one on eBay.
Gary
 
 
 
 
 
From:=
 =
psnlist-request@.............. [mailto:psnlist-request@............... =
On Behalf Of Richard Schneider
Sent: Sunday, December =
05, 2010 12:07 PM
To: =
PSNLIST@..............
Subject: Testing Amplifier Frequency =
Response
 
Hello =
PSN,
 =
I would like =
to run a frequency response test of my amplifier/filter but I only have =
test equipment in the 50 Hz to 50 KHz range.
 =
Do any of =
you have a recommendation for constructing a generator that would output =
DC to 5 Hz with a uniform (flat response) =
voltage?
 =
There was a =
CD disc someone was selling (RefCD) at the URL below that modulates a 1 =
KHz sine wave with a 1 Hz since wave. I believe the idea is to filter =
out the 1 KHz signal at the output of a PC sound card. What are left are =
pure VLF signals that could be used to sweep the =
amplifier/filter.
 =
=
http://www.science-project.com/_members/science-proje=
cts/sponsorads/refcd/seis.html
 =
I know there =
are several freeware tone generators you can download, but I don’t =
think a PC sound card can reproduce DC to 1 Hz. Am I =
correct?
 =
Thank =
you,
 =
Rich
 =