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I'm interested. Do you know of a set with one-eye focus adjust? I'm way more nearsighted on the left than the right. Dave Wise ________________________________________ Sent: Wednesday, October 03,

It may be worth looking at the output of the opamps in the PSU current sense sections of the circuit. In mine the 5V lighting circuit was shorting inside the PSU and that was the only way I found the

Look here: http://w140.com/tekwiki/wiki/2815 Appears to be 2000-series. Colin.

Hi Maxim, When you complete any calibration routine (eg. CALXX), the scope will have stored the calibration constants, and when you leave the calibration menu, it will recalculate the checksum for

Does anyone know which of the ribbon connectors on the 7104 power supply that can be safely detached to determine which is causing excessive loading? Also, which of the 7000 Series oscilloscopes use

I have a 2815. I have no documentation for it. Can anyone tell me what family this Tek scope came from? In other words, what is the equivalent Tek scope series, without the optical power

You might be able to find bifocal reading glasses. I use computer glasses myself, bifocal (blended) with the "far" prescription set to "medium distance". Harvey

The Mantis and other stereo microscopes can only look straight down (with some exceptions, of course). Loupes, Optivisors, and similar head mounted optical systems can look wherever is convenient.

Hello Chuck, Thank you for answering. My 2445a repair/calibration project is the life long (almost 10 years, almost no time). I should of given up on it long before, but it's just not an approach

Diopters is the focal length in meters inverted.?? Drug store reading glasses are sold by diopter strength. https://en.wikipedia.org/wiki/Dioptre Pete.

You can replace the CMOS RAM and battery with a NVRAM (or FRAM) with a little work. You have to remove the battery, cover it over with a label describing the modification (because you are nice). You

I'm jealous. The Mantis is the greatest thing since sliced bread, especially if you wear glasses. Wish I had one. In my opinion, from best to worst: Mantis Binocular Microscope (I have an Amscope

Interesting, I had good sight for most of my life but the ability to focus on different size things has been getting worse lately and to read or computer screens use 1.75 readers so I have been

Hello Joe, Here is the file I've mentioned in my previous post: /g/TekScopes/files/2445B%20B060XXX%203-15-2015.zip kindly uploaded by Mitchell Kobierowski, However in my case I'm

I'll order one and give it a try. Bob.

I use one of these and love it for close work: Carson Optical Pro Series MagniVisor Deluxe Head-Worn LED Lighted Magnifier with 4 Different Lenses (1.5x, 2x, 2.5x, 3x)

Just a quick word of caution. The A5 board is a multi-layer board and there are interlayer conductors to the pins of the NVRAM. You really want to use good desoldering equipment and techniques when

I have a scope that fails 04 my need calibration and can't I find the 2445B NVRAM in files section can someone point me in the correct direction? Joe

I need the nameplate above the crt on the front panel. Anybody have one laying around? Thanks! Marty KL7AM

What do you like most in you 2468B (vs 9374L)? I am interesting because i use (and have) many analog and digital oscilloscopes, and 9354L was the fist DSO i liked, mostly because great