I do live on the north shore of Lake Erie, about 20 miles from a USAF reserve base in Niagara Falls, but visits from the Navy ships on the lake are rare here. Interesting articles though.
False opening/closings are as old as remote GD openers. When I was a wee lad in the '60s their spontaneous...
searsjames - yes, that makes good sense, but makes the assumption that the antenna was originally made to the correct length, which I don't believe every manufacturer does every time. I think calculating the 1/4 wave length from the freq would be dead-on (when I find it out.) An incorrect...
Thanks for the suggestions. I'll do some simple experimenting once the thermometer rises to more reasonable temperatures.
Curiosity question: could I not measure the antenna length and determine the frequency by calculation, assuming it's 1/4 wave, roughly? It's not listed anywhere in the...
Is there a way to attach a lead to the in-garage receiver antenna so that it can be moved about 9 feet so as to pass through a brick wall? My range is very poor and the installer says he can't do anything about the poor signal penetration through a brick wall.
I figure I may be able to fashion...
Hi BrianR -
(Not to hijack the thread.)
You wrote "If you want reliable solder joints then do not resolder them. That is a shortcut to failed joints."
What is your experience in this? Is this a mil spec or aerospace requirement?
I dip solder small PCBA's and have often removed and...
Also -(A tip if you're concerned about maximizing bulb life) - when using a dimmer switch with a halogen bulb it is a good idea to run the light at full power either occasionally or right before turning it off, to ensure that the temperatures for the redeposition on the filament are attained.
Understood. Thankyou.
The reason for my question is that I just built a house and installed 40 - 50 halogen pot lights, on the advice of all current literature which is urging the use of halogen because of its efficiency. The bulbs are PAR20's which run around $9 CDN a piece compared to regular...
Halogen bulbs are considered more efficient than regular incandescents because the tungsten filament burns hotter and puts out more light. But to me, it seems that a bulb that burns cooler will be more efficient because it is producing less heat and thus more of its electrical energy is going to...
Epilogue...
- the 6X6 wire mesh wire is 5mm in dia.
- a steel member running perpendicular to the beam in question was for some as of yet undetermined reason left out - the likely culprit of this whole problem
- we will be seeking the input of a Structural Engineer, and the Architect has...
Rjeffrey - good thought, but the beam was uncambered at installation.
JedClampett - L/360 is the deflection I've worked with for wood I's. From what you said, it looks like this is what one shoots for in steel as well. As Daniel points out, I cannot risk cracking the concrete, so my goal now is...
My architect sized the beam. The 8" beam was originally a 6" beam with a support column in the middle of it. When that column was removed it was changed to 8". The architect did not suggest that the beam which has deflected (which is parallel to the larger and about 5' away from...
I've just had a Stampcrete raised deck installed on my house using "I" beams and a corrugated-type galvanized steel pan. One area spans 24'-9", and the supporting beam (W6X20) has deflected down about 1" (maybe more, haven't been up there to measure it yet) under the weight...
