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  1. HANKMARS

    Video signal DC level adjustment

    Coax is too rigid. Last prototype used 5 or 6 conductor (twisted pairs) shielded cable. Worked nicely. For whatever reason (I will guess DC level drift ) monitor had a tendency to white out. The famous microsoft fix (cycle power) would almost always bring back image.
  2. HANKMARS

    How do I delete alerts from the alert list?

    After I see an alert in my profile and go to new post to read, how do I delete that particular alert from the list?
  3. HANKMARS

    Video signal DC level adjustment

    Power to camera will be in same cable but not same wire as video signal wire.Video signal typically - & + from camera out. Typically power ground and - side of signal tied together at camera. Seems like at amp I could tie - side of signal to power ground but in last iteration this wasn't done...
  4. HANKMARS

    Boosting the Amper and altering the frequency

    Is the venom a pheromone drawn from a queen?
  5. HANKMARS

    Radio spelunking reception

    What are my chances of receiving clean video signals from a radio transmitter ~ 500ft directly below me in an eight inch diameter hole. I am also curious as too the added situation of the radio trans being submersed in ~ 200ft of water, in the same size hole.
  6. HANKMARS

    Video signal DC level adjustment

    If I receive a video signal thru wire that is ~500 ft long, I'll be concerned about its DC level. Is it practical to capacitively couple the signal to my video amplifier or will an attenuation factor of the caps degrade the signal. I'm too lazy to do the calcs I suppose but also I'm uncertain of...
  7. HANKMARS

    Best op-amp for audio use?

    I have a 12 string acoustic guitar. There are times I desire to amplify its sound. I have tried 3 styles of 'snap on' pick-ups but all were unsatisfactory. I have resigned myself to the idea that a microphone and mic amplifier may be my only salvation. I tried a mic from a 70s brick-type walkie...
  8. HANKMARS

    Boosting the Amper and altering the frequency

    I have installed "Tiny Cad" on my computer but have not yet taken the time to weed thru its functions. I'll try to use it to show a recent audio amp I constructed a give a critique. Electronic design CAD is not something I have used before, so if I can learn it readily, I'm sure others can, too.
  9. HANKMARS

    Government disclosure of UFO info tonight

    I have heard it said that space travelers lock the vehicle doors when they cruise thru this solar system.
  10. HANKMARS

    Government disclosure of UFO info tonight

    Very likely. A lot of "What ifs," "It was reported...." May not be a single fact presented. Something that I find confusing is, while possessing the technology to star-hop, how is it that crash landings seems common place. Perhaps a Star Wars type tavern operates on the far side of the moon?
  11. HANKMARS

    Government disclosure of UFO info tonight

    It should be interesting to see if any hard facts are released or if Haraldo Rivera is the show's host.
  12. HANKMARS

    Coronavirus transmission prevention device.

    There is no shortage of eye witnesses to the fact that covid was falsely stated as cause of death thousands of times.
  13. HANKMARS

    Coronavirus transmission prevention device.

    I find it best to not take any statements as hard evidence. When it was popular to broadcast news of hospital crowding due to covid patients, it was my conclusion that the ONLY way a person could know the truth, was to personally walk the halls of these hospitals and do an on site visual...
  14. HANKMARS

    Coronavirus transmission prevention device.

    Here's an eyeful. I'm posting a photo clipped off the net. I have no verification as to if the world top virologist made the statement or not. I suppose I could contact him and see if he did state this and if it is still his prediction. How almost unimaginably horrible an occurrence this would...
  15. HANKMARS

    Transistor as a switch

    Good idea hevans. This thread did induce considerable conversation for what still appears to be an easily answered question. Perhaps the answer was found elsewhere by the inquisitor. So box it, seal it, toss it in the archives.
  16. HANKMARS

    It's only polite I introduce myself!

    I am relatively a newbie at EP, also. I find navigating around EP's forums a moderately intuitive task. I've been lost a couple times but rescued from a blind canyon by a moderator. I have confidence enough in EP's designers to not worry about crashing their site and that allows me the luxury of...
  17. HANKMARS

    "Similar Threads"

    My best WAG is that making a motion, getting a second on that motion, and an offer, or suggestion, to carry the motion, are Parliamentary procedures, of which I carry a high degree of ignorance. I furthermore have no insight of the governmental or regulatory structure of EP. I can only pray that...
  18. HANKMARS

    Transistor as a switch

    You are correct. If I see a pair of adjustable pliers, I may be inclined to refer to them as Channel Locks. Perhaps there is a company named Channel Lock or the company that introduced the adjustable pliers named their creation Channel Locks. So if I refer to an adjustable wrench as a Cresent...
  19. HANKMARS

    "Similar Threads"

    I motion to carry. I don't know what that means but sounds official.
  20. HANKMARS

    It's only polite I introduce myself!

    I currently have a class D amplifier on the bench and have just received parts to continue construction. I am uploading the schematic that I found in an article discussing theory of operation and construction of a class D amp. The values, voltage, input, output were not what I initially had in...
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