Search results
-
Video signal amplifier.
No I have not ventured there but it does sound interesting. If time provides, I may very well nose around some in that matter. -
Video signal amplifier.
My best guess is that the DC level was the primary problem. I have no idea when I will work with video signals again. They certainly produce a ghostly trace on the Oscope and are rather hypnotic to watch as one changes the camera input. My previous experience with video signals exists on in tech... -
Video signal amplifier.
Ok. Good to know. Truthfully, it is there to dump off some gain. Didn't work well enough. I will be cutting the gain to approx 1.1 to 1.2 by changing feedback resistor values. This is my first rodeo with video signal manipulation and I do greatly appreciate your help. Thank you. -
Video signal amplifier.
HELLO. Well, not sure if you saw last post. Anyway, a gain of 2 was too much to dampen so I paralleled a 2.2K resistor with the existing feedback resistor which gave me 1100 over 2200 or .5 + 1 for a gain of 1.5. Much nicer. I did have to change my output to ground to 130 ohms to make my color... -
Video signal amplifier.
Howdy. The following configuration gives me a gain of 2 and reliable color signal thru 500 feet of spooled cable. -
Video signal amplifier.
I find lead/acid batteries to be expensive, dangerous, heavy, high maintenance, and to have a relatively short life span but also, they seem to be the most popular storage system for residential alternate energy. Remember, I may very well find myself deep in the Congo, at night, in complete... -
Video signal amplifier.
I look forward to seeing the link you have posted but am interested in finding a few facts about a particular formula. I had asked this question on the "stack" but was told to go do my homework. Sort of a pat answer by those who have not done their homework yet hold the degree as if they had... -
Video signal amplifier.
Dead reckoning or calculated results based on guesswork, or in this case, intuition. I was unaware that pumping stations were used in such massive hydroelectric operations as dammed water ways. My "volume" of stored energy is more so in the neighborhood of that required to power a single family... -
Video signal amplifier.
Camera project still remaining warm on back burner. I got a few licks in on another pet project this last week and acquired a "money" project that should wrap up by end of next week. In this instance, money project does not refer to a motherload strike but rather a project that offers a few alms... -
Video signal amplifier.
One aspect of calculating the potential energy of my defined mass, 2000 Kgm, is that it would give me an indication of energy required to lift the mass the stated 3 meters. If I used friction-less, ideal machinery to raise the ton, the energy used would equal the potential energy of the mass... -
Video signal amplifier.
That was the hearsay I considered, was the demonstration of electrocution of a goat or some such creature, that went airy. Ultimately, I consider that transmission of DC power would have been the killer of a DC system. -
Video signal amplifier.
OK. My parts are in and I will leave to go retrieve them in a short time. However, I do not wish to leave my faithful brain trust in an unwanted lackadaisical state that would leave them feeling uneasy. Therefore, I will post another unrelated quandary here for contemplation. You may want to... -
Video signal amplifier.
I finally found specs on color camera. See attached file. -
Video signal amplifier.
I think lt appears that with most opamps, as the freq approaches its limit, gain capability becomes quite limited. -
Video signal amplifier.
I referenced only digikey company and only the 8 pin DIP package concerning the obsolete part category. -
Video signal amplifier.
Personally, I consider the hour spent building an amp circuit with the LM747 to be time well spent. I can inject my signal and load it down and document its failings, just for fun, let's say. Back in the day, everything was overbuilt. Not so much today. The specs on components manufactured by... -
Video signal amplifier.
Just a note of criticism, I find the format very non-intuitive as far as reading and replying to comments in a thread. However, having this communication ability is an absolute helpful device. I just typed 200 words and lost most of them and scattered the rest. The point was that it may be a... -
Video signal amplifier.
I am very anxious to get "restarted" on this project. Parts, even just the nuts and bolts resister kit, expire Not a problem when you selectively quote fragments of my original text: This was not a comment about wire size, it was a comment about my doubts that 500 feet of two pairs of solid... -
Video signal amplifier.
Edison liked to import some of his findings from other peoples experiments. I am not quite done with the LM747. The reason, I believe, that I was losing the low end of my signal was because I neglected to use a voltage divider to pseudo provide a dual supply and therefore using my minus full... -
Video signal amplifier.
Not a problem when you selectively quote fragments of my original text: This was not a comment about wire size, it was a comment about my doubts that 500 feet of two pairs of solid, shielded, 18 AWG twisted-pairs, could be easily wrapped around a six-inch diameter spool and easily fed out and...