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2465B Probe Compensation Output
I have a new to me Tek 2465B - a dream come true. As I was putting the scope through the paces, I discovered that the probe compensation output signal shows pretty significant ringing at time bases
By Wm. Davis · #203498 ·
Re: Tek 2445B and 2465B power supply recap and Dallas NVRAM replacements?
Just use Ramtron FM1608 as pin-compatible replacement for DS.... it works.
By [email protected] · #203497 ·
Re: Walter Shawlee obituary in the NY Times
I too thought the article was quite wonderful....and re slide rules. Walter and I talked about them a bit. great guy and sorely missed..i still use my 6 in slide rules ....my 18 in is bamboo and
By Ren¨¦e · #203496 ·
Re: Walter Shawlee obituary in the NY Times
I totally understand,? Dave!? Same issue here....? ? ? ? ? Jim FordSent from my T-Mobile 4G LTE Device
By Jim Ford · #203495 ·
Re: Walter Shawlee obituary in the NY Times
Yes, I had only bought once or twice from Sphere, but Walt and Susan did include some useful goodies.? Say, that NYT article mentioned slide rules made out of bamboo, and I'd never thought about it
By Jim Ford · #203494 ·
Re: Walter Shawlee obituary in the NY Times
Yes, nicely done. I feel, however, that there was a lot more to Walter. Of course... journalism... eulogies ..the 'craft' of telling stories and all that. -- Roy Thistle
By Roy Thistle · #203493 ·
Re: Walter Shawlee obituary in the NY Times
Oddly enough (or maybe not) ... They didn't seem that interested in slide rules...at least... when I inquired about them. -- Roy Thistle
By Roy Thistle · #203492 ·
Re: Walter Shawlee obituary in the NY Times
There's a Stuff Day scheduled for 2/24. Wish I could go. Well, I can, but I wish my wife would let me come home if I did. Dave Casey
By Dave Casey · #203491 ·
Re: Walter Shawlee obituary in the NY Times
I miss Walt. I first got acquainted with Sphere Research through slide rules. I had saved mine from my university days. I still have the Dietzgen N1725 Vector Log Log. My father was an architect and
By stevenhorii · #203490 ·
FS: 012-0482-00 - 36 in., precision (1%) male-to-male, new in the package
012-0482-00 - 36 in., precision (1%) male-to-male 50 ohm precision coax cable. PM me your offer Located Vancouver, BC Canada Local pickup is fine Paypal okay, eTransfer for in Canada is fine You
By Ken Eckert · #203489 ·
Re: Tektronix TDS3034B Boot Challenge - Help Needed
Hi Mike, Here are a couple of thoughts... (i) The early DRAM checks only test the Buses, I/O pads, and a few memory locations - far from comprehensive. (ii) Symptomatically you likely have either a
By guy_ellis_1964 · #203488 ·
Re: Extender Cables for TM500/5000 series - Alternatives?
@Victor, Fair enough. I just wouldn't compare the work I did to the soldering job done by a prior owner which I would agree was hacked. Yes I did joke in my video about the mess of jumper wires.
By Frank Mashockie · #203487 ·
Re: Walter Shawlee obituary in the NY Times
That was a nicely done bio.
By John Griessen <john@...> · #203486 ·
Re: Extender Cables for TM500/5000 series - Alternatives?
Frank, I re-read my message and I don't believe it was condescending at all, except possible saying it was hacked. When I said hacked up I was referring to mods not made by you - as you mentioned in
By victor.silva · #203485 ·
Re: Walter Shawlee obituary in the NY Times
Alternate link for those who get poleaxed by the paywall: https://archive.ph/r0uuX -- john, KE5FX
By John Miles · #203484 ·
Walter Shawlee obituary in the NY Times
https://www.nytimes.com/2024/02/08/science/walter-shawlee-dead.html
By Mark Kahrs · #203483 ·
Re: Extender Cables for TM500/5000 series - Alternatives?
Thank you Shaun! I'm going to try to emulate your daughter cable. I got one of these - advertised as a dual-sided 15x2 HP extender card (https://www.ebay.com/itm/145165996325). I plan to desolder
By Frank Mashockie · #203482 ·
Re: Pull tab removal on TM500 series plug-ins
Here is a link to some photos of the older latch. /g/TekScopes/album?id=292949
By Barry Breaux · #203481 ·
Re: Extender Cables for TM500/5000 series - Alternatives?
Frank, Regarding the extender cable. Yes it is homebrew: Two ribbon cables, one connector and a couple of 15x2 PCBs. When I realized I needed to troubleshoot the A6 board, I had to make one.
By Shaun M · #203480 ·
Re: Pull tab removal on TM500 series plug-ins
I think Ed is describing a newer version of the locking mechanism than the one that Mr. Blown is dealing with. The older one is gray. It is held in place by a small gray plastic rod that expands the
By Barry Breaux · #203479 ·