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Hi Mark, I wanted to eliminate the battery and not worry about it. In my use model FRAM would last pretty much forever (data retention is 151 years). Although Dallas chip battery seems to last longer

https://washingtondc.craigslist.org/doc/ele/d/crofton-vintage-tektronix-535a-scope/7264086289.html Thomas Garson Aural Technology, Ashland, OR By my calculation, the dynamic range of the universe is

Ozan, I forgot about the FRAM option. But I was confused on its advantage vs the Dallas 1225AD. Seems like in both cases you need to capture the prior configuration data(unless like you it was of not

Hi Dennis, Generous offer accepted. :) See you in Seattle one of these days, after the Age of Covid passes! -- Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford

Philly and Pittsburgh are both running really slow. I have a couple hanging out there since the 7th. 6 days to get from Pitt to Philly then nothing. I had one package there since December that finally

This book has been in the PHILADELPHIA PA NETWORK DISTRIBUTION CENTER since Jan 8 and it hasn't moved. Tracking #: 9549016335941002722853, Bryn Mawr PA 19010 These two books are still in the SEATTLE

I did FRAM replacement on my 2467B. I didn't bother reading the old NVRAM because I was going to calibrate anyway. There is an excellent documentation for different options (google finds it easily).

The 6 books destined for the Springfield Bulk Mail Center have arrived there and are being distributed to the local destination post offices. Dennis Tillman W7pF

Well it seems there are parallel FRAMs from Infineon/Cypress. Would this work? Mouser stocks them. You would have to use a SOIC to DIP adapter board. The datasheet says standard 8K X 8 pinout so it

Hi Tom, <SNIP> A colloquial version of the history was written up by Paul Rako and can be found here:

Wasn't there a FRAM memory chip at some point that could replace the Dallas part? I seem to remember reading about it. I may have even bought some chips to convert one of mine at some point but too

Hi Dave, I know that Portland State University offers a course on scientific glass blowing (as opposed to glass blowing art glass) so maybe there is a college or university near you that offers a

Hi Craig, I may have been incorrect. The USPS Distribution Center is in Kansas City. You could try calling their number to find out why they aren't accepting mail from the Seattle Network Distribution

Hi All: I started this topic, to see if we are interested in coming up with way(s) to satisfactorily construct "blank" TM500 modules, for custom plug-ins. What ways and satisfactory mean will have to

We must be neighbors then, I'm 67217'

I did it on a 2440 but used a soldering iron to heat the potting and get it away. There are pics of where to dig, I think, in the files section. When I did mine, I added a wire to the ground pin on

What is the current state of the art for replacing the 2020b late model NVRAM? 0. Looks like the Dallas DS1225AD is a drop in but requires extracting the configuration data. (Yup, I get that my 2465B

It might. I've had training it it... and it is both demanding and fascinating. If you are interested: I started a group: [email protected]

Given that a T-coil is sometimes construed to be a kind of peaking coil, you might read Oliver Heavyside's paper. As a related aside... Heavyside is an absolute hero of mine... his story is both

The part that surprises me is that the T-coil was deemed unusable for the case that could most benefit from it. I'm just wondering which of several possibilities was the showstopper for the 3m cable.