What good is a laser without demonstrating single slit diffraction? So I went to ebay and bought this (pics from ebay) Gaertner Scientific Adjustable Optical Slit on a Newport (NRC) optical breadboard mount (Newport B-2 base and VPH-4 mount):No. Not enough He.
edit: However, the same tube type in this laser does work.
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Sounds old enough to be worthy of some photographs. Hint, HintMy scope is an old Tektronixs 2465A 350MHz analog scope I bought for $400, my Pulse gen is HP old one that is at least 30 years old and I use an old Wavetech signal generator.
Well there you go. Proof positive.There's nothing wrong with using old test equipment as long as it can do the job. ... We got the job done gloriously, went through IPO and all.
got me thinking of the time needed to grade a gross of eggs with this Mascot Egg Grading Scale "balance":Today I went to the store and there were NO EGGS! NONE! Who hordes eggs???
Wow! I was unaware there were gas engine powered washing machines, and surprised that Maytag made their own engines. According to this source, it was 5/8 HP, and I saw a link to a back-pack mount, apparently for the Military (probably used it to recharge batteries for radios?).I've been mostly absent from PF rebuilding a Maytag, Inc. (originally, The Maytag Washing Machine Company) two cylinder model 72 Hit-and-miss engine. It had been out-doors and full of rain water. But after two cans of WD-40 penetrating oil and two bottles of Naval Jelly rust dissolver, I was able to take the thing apart, clean, and paint. I purchased a gasket set, a piston ring set, and a muffler then reassembled. Here are some pictures of the finished project.
As soon as the weather is better, I'm taking the engine outside and starting it; hopefully.
Curious; where was the antique shop?
I haven't opened it to check what frequencies the crystals are, but @Averagesupernova did the research, thanks @Averagesupernova. Unfortunately I get a error 1020 while trying to go to the site. What I find interesting is that it has two antenna jack connectors; one for UHF and one for VHF. I've been hunting for a couple old auto antennas that should work by adjusting their lengths.Any idea what channels it's set up to scan? Does it have one crystal per channel?
here is what's printed on the crystals:Any idea what channels it's set up to scan? Does it have one crystal per channel?