Re: Wanted - surplus box with large panel meter
On Wed, 26 Aug 2020 at 13:29, g4cch_1 <g4cch_1@...> wrote:
I am building a noise power meter, and am looking for surplus box with a large panel meter. Ideally the meter should be 500uA or 1mA. An old power supply, or anything non functional with a large panel meter may be suitable.
How about getting an old AVO meter? That will have a mirrored scale, so about the best you will get.
To what sort of uncertainty do you expect to be able to measure noise power? I don’t really see why you need a large meter to measure something that you are not going to be able to measure very accurately. The needle is not even going to be stationary when making a measurement of noise power, so I don’t think even quantitative measurements require a large meter.