Hi guys,
I have an old vintage HP audio osciallator which I want to use for
some experimentation to get more practice in electronics. Its output
is continually variable between 4 and 20 volts. Problem is, for some experiments I have in mind, I need it to output only between 1mV and
10mV. The oscailator's output impedance is 600 ohms it states.
Can anyone suggest a simple passive attenuator I could build from
easily available components which would give me this much lower output please?
thanks!
Hi guys,
I have an old vintage HP audio osciallator which I want to use for
some experimentation to get more practice in electronics. Its output
is continually variable between 4 and 20 volts. Problem is, for some experiments I have in mind, I need it to output only between 1mV and
10mV. The oscailator's output impedance is 600 ohms it states.
Can anyone suggest a simple passive attenuator I could build from
easily available components which would give me this much lower output please?
thanks!
On Wed, 9 Jun 2021 04:06:44 -0400, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:
Chris M. White wrote:
Hi guys,
I have an old vintage HP audio osciallator which I want to use for
some experimentation to get more practice in electronics. Its output
is continually variable between 4 and 20 volts. Problem is, for some
experiments I have in mind, I need it to output only between 1mV and
10mV. The oscailator's output impedance is 600 ohms it states.
Can anyone suggest a simple passive attenuator I could build from
easily available components which would give me this much lower output
please?
thanks!
A bit more detail would be useful.
I'm happy to oblige. Anything specific?
However, something like a resistive voltage divider will probably be a
good place to start.
10k
GEN 0----RRRRR----*----0 OUT
|
R
R 10 ohms
R
|
|
GND
To get down to 1 mV, you can hang a pot on the output. Figuring out
just how to do that would be a step forward.
What's the problem in that? Seems simple enough to my simple mind!
Chris M. White wrote:
Hi guys,
I have an old vintage HP audio osciallator which I want to use for
some experimentation to get more practice in electronics. Its output
is continually variable between 4 and 20 volts. Problem is, for some
experiments I have in mind, I need it to output only between 1mV and
10mV. The oscailator's output impedance is 600 ohms it states.
Can anyone suggest a simple passive attenuator I could build from
easily available components which would give me this much lower output
please?
thanks!
A bit more detail would be useful.
However, something like a resistive voltage divider will probably be a
good place to start.
10k
GEN 0----RRRRR----*----0 OUT
|
R
R 10 ohms
R
|
|
GND
To get down to 1 mV, you can hang a pot on the output. Figuring out
just how to do that would be a step forward.
A bit more detail would be useful.I'm happy to oblige. Anything specific?
On 6/9/21 11:24 AM, Chris M. White wrote:
On Wed, 9 Jun 2021 04:06:44 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
Chris M. White wrote:
Hi guys,
I have an old vintage HP audio osciallator which I want to use for
some experimentation to get more practice in electronics. Its output
is continually variable between 4 and 20 volts. Problem is, for some
experiments I have in mind, I need it to output only between 1mV and
10mV. The oscailator's output impedance is 600 ohms it states.
Can anyone suggest a simple passive attenuator I could build from
easily available components which would give me this much lower output >>>> please?
thanks!
A bit more detail would be useful.
I'm happy to oblige. Anything specific?
What's the load? Any DC involved?
However, something like a resistive voltage divider will probably be a
good place to start.
10k
GEN 0----RRRRR----*----0 OUT
|
R
R 10 ohms
R
|
|
GND
To get down to 1 mV, you can hang a pot on the output. Figuring out
just how to do that would be a step forward.
What's the problem in that? Seems simple enough to my simple mind!
Well, if you understand pots, you understand voltage dividers already.
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