![]() That old spectrum analyzers, let’s say HP 141T are very cheap in ebay. So you people keep us thinking and dreaming…. Also had a look at Simple Down Converter Design by By Bill Pretty (oscilloscope BW extension). Pupalaikis & associates paper on the issue is available on the web (IEEE BIPOLAR / BICMOS CIRCUITS AND TECHNOLOGY MEETING 2014). I was watching your video on Teledyne-LeCroy 100 GHz scope. This is only a humble request from a viewer and hopefully, you will be able to have the time and interest to cover this analyzer. from my interaction with the company they are very responsive to emails and i even had one of my questions answered by the ceo himself! so they could be open to sending you a review unit. since there are very few reviews of this manufacturers products online it would be great to have you analyze how the product works and then see you put it through its paces to see how well it performs especially when stacked up against the claims of its manufacturer. i have seen some recent reviews on youtube of their usb spectrum analyzer the spectran v6 x and was wondering if you could be able to carry out a review of this product too. I recently came across a german instrument manufacturer: aaronia, with some very interesting products. from teardowns of the instruments, schematic walkthroughs to real life tests using the equipment under review your reviews of high end test equipment are some of the most thorough anywhere and i thank you sincerely for your work. At the same moment.Hello, ive been watching your videos for years and am a fan of your approach to instrument reviews. The circuit response is everywhere at the same time, all elements at the same time. The WHOLE CIRCUIT responds to signals instantly, the whole event HAPPENS. Once we understand it - it is easier to talk further.Īnother thing is timing of signal - it does not go from one place to another. So path is from PS to ground, not from CD to speakers. If an amp has 3 stages, there will be 3 cases of current flowing from PSU to ground by the active part. In every STAGE of amplification the current flows in VERTICAL manner, not "horizontal". The current flows from power supply to the ground via active elements. But it does not flow from source to the load (receiver). The VOLTAGE - does not flow by definition. The electricity from power supply then copies the original signal in what we call "amplification stage". The minuscule current flowing from your CD source to the ground via this parallel impedance of a mentioned pot produces small voltage resulting from the impedance of the pot (Ohm's law) This voltage is then being "read" by the grid electrode of the tube, or in non-hifi units - the base of transistor, and this signal in turn regulates the series impedance of the active element. The Waves PROPAGATE in circuits but they happen everywhere at the same time and involve all circuits. Having said that - lets agree once and for all - the CURRENT flows, and the VOLTAGE IS. It is like the movie hero who dies in the first scene. The signal sinks to the ground through this resistor and that's all. The signal (current) enters via RCA jack, and the first thing it sees is usually a parallel resistor or some kind of parallel pot. The so called "signal" does not flow along some PATH. The bitter truth is IT IS NOTHING LIKE what people think it is. I am sure everybody knows what I am talking about. Short signal paths, pure s.p., elegant s.p. I read about signal path so many times I am almost ready to believe it. I find lampizators opinion about signal path quite interesting:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |