I had Chuck Harris recap and calibrate one of my 2445B's.. I shipped it to him and he shipped it back. No detectable damage from the shipping experience. It's true that LA is a lot farther from Maryla

David, This may not be that illuminating, but my memory from the time these disks were in daily use was that there were drive differences as well as disk differences and that it was not at all certain

Well Chuck, That was my scheme when I built my reflow oven. I bought a new Black and Decker which was identical to the one she was using and offered a switch. It was rejected with the observation that

Or SWMBO as such a person is referred to on the web. Cheers Dennis and Marian. John Ferguson

I well know the frustration of buying a "parts-only" scope only to have it show up working and not even that far out of cal - if out at all. Still need a carrying handle for my 2445B. john

Sounds like a Deep Learning project. Tensorflow. If only there were more time, and fewer things to do.

Ed, This makes sense.

Tektronix/Shanghai ???

at 76, I grew up with condensers - that's what Dad, an EE, called them.

Bruce, what a delight to see a reference to condensers. Cheers, John Ferguson, AI4TO

Sometimes the manufacturer's approach to end-user repairs makes sense. Many years ago the LCD screen on my Garmin GPS-75 acquired a black horizontal band.?? It wasn't difficult to disassemble and soon

I've printed a few rolls of PLA clear and a couple of PETG clear (natural). I agree with Chuck that it is unlikely that you could read labels the size we would need through an untreated print. It migh

Mlynch, Your experience seems similar to mine. Over the last several years, I've made a considerable amount of 3d prints with my two printers, one a cheap one I bought to see if the idea made sense, a

Thank you all for a really fascinating (and enlightening) discussion. It appears that Tektronix developed astonishing expertise in the display of data on CRT's. Has this expertise continued to serve i

disregard the "??" on the earlier note. this seesm to be something that thunderbird is doing to me. Chuck really did calibrate it and it runs very nicely now.

Chuck Harris in Maryland re-capped the PS, did some other repairs, and replaced the NVRAM with an FRAM, and calibrated?? one of my 2445b's all for a very reasonable price.?? Shipping from Florida FedE

Where are you? I ask because Chuck Harris calibrated one of my?? 2445Bs?? as well as re-capping the PS and fixing some other problems.?? I am happy with the result and the cost was fair. He lives in M

I've been using drafting dividers - good ones - K&E Paragons. They have sharp points but the benefit is the built-in friction tends to continue to hold the part once I grab it. Do not work sitting on

sorry, of course everyone's posts are marvelous, but especially the one on DSP in the oil industry by Reginald Beardsley

Thank you for your marvelous post. john ferguson