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jtkinney

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Everything posted by jtkinney

  1. I know how it's done, but it still amazes me when I see cruise ships that are nearly that tall that don't roll over and sink.
  2. Try connecting a small capacitor, .001 microfarad or so between the speaker terminals and ground at the amplifier, both terminals, both channels. Your speaker wires are acting as antennas and providing a signal into the amplifier.
  3. Willy, I hope lots are still interested. I missed the video, I was standing out in front of our building watching it live. My wife got to enjoy the launch from the firing room, yep she's made it to the big time. There's nothing like it when the sound wave rolls over you. This one was different in the direction it went, much more southerly than the space station direction.
  4. I like this system with a couple of mods. I have over 6000 technical references from work that I keep track of in an Excel spreadsheet. It uses the list function, so each column can be sorted depending on what criteria I'm looking for, i.e. Title, Performer, Conductor, genre, etc. In my case, each document is scanned as a pdf, so there is also a hyperlink directly from the spreadsheet. I would modify mdeneen's system by keeping an old laptop nearby with the database on it. That way you can modify the sort/search and not have to keep making paper copies of it. The DB would also tell you where the albums were so order is not an issue. Make sure you keep a back-up somewhere else. Looks like a cool collection, it would be nice to drop in and listen sometime.
  5. I still have a scar on my left arm from a Snapper RER mower, not the mower's fault, mine. I repaired a friends mower and while test driving it before putting it all back together, I was chasing my brother around the yard (blade not running). Reaching back to override the governer, my hand slipped and my arm rubbed the flywheel removing several layers of skin. Like I said, not the mower's fault. I don't remember what I repaired, but it was several years old and the parts were readilly available at the time (70's). I used the mower several times to mow a couple of acres before returning it, and it worked fine. I now have a Husqvarna 42" with the 15Hp Kawasaki twin and love it.
  6. Pain medicine did nothing to relieve my herniated disk pain and nerve spasms. Large doses of anti-inflamitory along with physical therapy worked for me. Of course after it cleared up, some idiot (I admit it was me) rode one of the space shot rides that shoot you straight up at 2-3 g's. Luckily that only bothered me for a few days. Good luck, I've felt your pain.
  7. Tom, I think all of the production testing was done at Stennis in that time period, but there were 18 tests at Marshall between April 65 and August 66 to certify the engines. The test ran 1 to 5 engines up to full flight duration. This is from an ASME paper published when the engine test stand was designated an National historic monument. I didn't live in Huntsville at the time, but have relatives that did and remember the noise. This stand was also used to certify the Space Shuttle Main Engine before testing was moved to Stennis also. I would like to see the Stennis test stand, another historic monument. It's got to be huge as you said it was built to test 2 at a time. Five F-1 engines burned 7.5 million pounds of liquid oxygen and kerosene each second to produce 7.5 million pounds of thrust. Thirteen 2500 hp deisel locomotive engines turn water pumps that push 273,000 gpm from a 3.5 million gallon tank through the 96" pipe that Tom mentioned, to cool the flame deflector and quiet things down. We're talking large scale here.
  8. askbob - Unfortunately most of the engine testing has gone to Stennis, MS and the underwater training to Houston During the Apollo program, they tested all 5 Saturn V engines at once on that test stand and broke windows 20 miles away. Michael - They know the general area where the SRB's come down and park the recovery ships nearby before launch. The ships can see where they hit, but they also have locator beacons just in case. NASA is nothing if not redundant.
  9. Cool pictures Rockets. I've toured the recovery ships and talked to some of the crew. Those pictures make it look easy, but the SRB's are bobbing in the swells, which makes the underwater portion of the recovery very difficult and dangerous. They are also diving fairly deep so both ships have medical personnel and decompression chambers onboard.
  10. External analog power output meters were once (20-30 years ago) popular. I have a Radio Shack unit, with meters, somewhere that I would give you if I knew which box it's in, but too many boxes to dig through randomly. Parts Express has LED unit that is somewhat analog (linear meter). Rod Elliot has a couple of circuits on his website http://sound.westhost.com/projects-6.htm if you are the DIY type.
  11. It almost made it to 80 here near the beach in the Sunshine State[H] Even last week when it was in the 30's overnight, there was nary a snowflake in sight. Nice tractor, I wish it was here so I could build up the shoreline around the backyard pond.
  12. This is what happens when you don't spell check. Shouldn't it be spelled ...eat not ...eet? [6]
  13. Two of each, kids (girl 12, boy 10), Collies, bearded dragons.
  14. Not me I'm only 51, but full head of grey almost white hair, and a full mouth of teet, all 32. To my knowledge, my IQ is 13, which coincidentally is my shoe size.
  15. I got a couple of the Zenith boxes at Circiutcity, my Walmart doesn't carry them. They work ok. Digital TV is so wonderful, not. I have to change channels often when the video goes static or worse, static random pixelization. Can't we just keep analog TV?
  16. Heresy's make a fine center. I'm sure the Cornwalls would also, I just haven't tried that yet. They are too big to put in front of my RPTV, and the TV is too heavy to pick to put on top of the corn's. I have also use LaScala's for a center, but again too much work now. I haven't heard Forte's but they should also work with the Heresy center, or as surrounds.
  17. Stay warm up there. I will think of you guys when I go play hockey in the morning, but I'm in the same boat as Groom, it's in the high 70's here with a little morning fog. Here is a webcam about 5 miles east of me at a local landmark. http://www.ronjons.com/DisplayContent.aspx?ContentID=106
  18. That must be some kinda telephoto lens JB, or they lied to us about it not arriving until 2014/15. It hardly seems like it's been 3 years since I launched that thing. Great snow pictures. I agree, as long as they aren't here.
  19. Some humor that we would never fall for. Enjoy. Ten Audio Lies.pdf
  20. Horn design. Why-How_ Horn_Speakers.pdf
  21. I've been remis the last few weeks. Something always gets in the way of posting, but not this week. An article on room sizing. JAES_V52_6_PG640.pdf
  22. That looks like an interesting tool, will have to read some more about it. It looks like it would be great for cutting down sheet goods without having to recut on the tablesaw.
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