Activity for TonyStewart
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #279010 |
With 0 tolerance parts this amplifier acts with open loop gain as the feedbacks are equal and cancel. Olin is correct, and the tolerance stack up would make this an unpredictable outcome. This design fails because of unstated assumptions for designs specs, yet intuition and experience tells it won’t ... (more) |
— | over 3 years ago |
| Comment | Post #279280 |
Don’t take down vote personally, it means some jerk thinks you made a bad assumption or statement. If they give no feedback or value added comment , ignore those trolls who have communication issues. You seem competent enough to make intelligent questions, but watch out for unstated assumptions. (more) |
— | over 3 years ago |
| Comment | Post #279228 |
That’s the spec on the tightening of the connectors to achieve desired low loss without removal of excessive gold plating. (more) |
— | over 3 years ago |
| Comment | Post #279302 |
@Lundin. Low value added readers who fail to communicate and downvote are called Trolls (more) |
— | over 3 years ago |
| Comment | Post #279016 |
have fun learning.. maybe I'll make a Youtube or Zoom or any forum to train a group if there is interest. But I need motivation to do this. (more) |
— | over 3 years ago |
| Comment | Post #279016 |
This article has value to share your method that works for you. I learned 45 yrs ago when we had no tools except paper and pencil and experiments. So it worked for me too. But now I can do so much more using Falstad's simulators, that its amazing as long as you know to make ideal parts real C+ESR,... (more) |
— | over 3 years ago |
| Comment | Post #278856 |
@Olin's assertion to resonant frequency is totally bogus. Water has absorptive properties over many decades of f without this resonance. http://www1.lsbu.ac.uk/water/microwave_water.html#loss This is a good reference but fails to discuss the ionic behaviors of contaminants.
(more) |
— | over 3 years ago |
| Comment | Post #279302 |
IF you are an experienced EE and down vote this without comments you are in contempt of your own ego issue and have no business here. (more) |
— | over 3 years ago |
| Comment | Post #278856 |
false assumption on resonant frequency of water. -1 (more) |
— | over 3 years ago |
| Comment | Post #279016 |
For professional development, it is important to define the performance and assumptions desired before starting the design. I have some doubts on this design but then there are missing assumed values (more) |
— | over 3 years ago |
| Comment | Post #279016 |
TL;DR but very well-prepared WTG and image readability can be improved with Irfanview/Gimp with contrast+brightness (more) |
— | over 3 years ago |
| Comment | Post #279228 |
Then s21 losses in the connector threads of 0.1dB is good 0.5dB is bad, so calibrated torque is important.
(more) |
— | over 3 years ago |
| Comment | Post #279228 |
Now that you grasp the basics, the geometry is a big factor moving towards 5% of the wavelength and beyond. Although video SA's are 75 Ohms the std versions are 50 Ohms. But the only difference in coax is the ratio of the conductor radius for outer/inner.
In your example the small solder gap add... (more) |
— | over 3 years ago |
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