开云体育

Luca, I did post a photo of the condenser and resistor list I did for my 2465/B. That is still there with Mouser numbers. I had the Dallas chip in mine replaced with a FRAM by another exmemeber

My first thought on reading this was that there's no feedback to the grid. Then I looked at the schematic again and realized that the DC Offset line ALSO connects the integrator output (which is

Hi all About a year ago you helped me fix a Tek 2236 scope which is doing well ever since, for which I'm thankful. I'm planning to tackle the refurbishment and / or repair of the 2445B/2465B scopes

To report back- turns out one of our TekScopes forum members lives about 45 minutes from me and drove over to pick the 465M up. He has the skills to repair it... so I'm glad I posted this on this

That's a great book. I especially like the dtory ge tells about reviewing the piping plans at Oak Ridge. DaveD

For an explanation of cargo cult science, see Richard Feynman's excellent book Surely You're Joking, Mr. Feynman.? As a matter of fact, I was just recommending it to a coworker yesterday.? ? ? ?

Dave- having rebuilt a number of musicians amps mostly guitar....these folks are "nuts" and same with some of the "audio" folks ....lack of understanding and too much superstition....drives me crazy

CAL? answer before and after self

In my case, science fiction films from the mid 60s until the early 70s often had high quality equipment that was accessible even if out of reach financially. It wasn't exotic one of a kind lab or

From my experience with other scopes from the same era, flash can be written in blocs, but must be erased in full one time, firmware included. The FLUKE 105 for example has three calibration slots,

fmashockie: Maybe I have a different revision than you? I did remove everything I could, as removing the front panel was the last thing I want to remove. Lot's of extra work. Now as I destroyed the

Hi Jim, No, that's not what I've been saying. Storage time, ts, and trr are nearly the same, and in practice may often be taken to be so. The "tail end" is the snap interval. In equation form, trr =

Jim, This was about what should happen when the nuvistor grid is shorted to GND. In that situation you eliminate the feedback signal to the grid. The integrator output will drift away since with

For the producers, the “investors” are Max Bialystock (Zero Mostel) and Leo Bloom (Gene Wilder). Their scheme is to get investors to fund a musical that is sure to fail after one performance. They

Some of the old capacitor patents are for chemical compounds introduced in order to stabilize other chemicals by absorbing contamination. They describe how the stabilizer is slowly used up over time.

Jon, the new album with slightly edited description is now moved here: /g/TekScopes/album?id=292746 I will now use this place for any additions. I have more photos in case someone

Ed, I think your and my understanding of what goes in a PN junction are pretty much the same. I was just trying to come to an understanding of what "storage time" is, and is it different from trr.

Barry, Finally! Glad to hear you got the problem solved. All that time for a cheap part. From what you say, voltage across the bad condenser caused it to fail in some way. What I said about the beta

i got all of my tek scopes off craigslist (including a 465M). if you put it there, do not list it for free but describe it as broken and a little description (trigger). charge $10 to keep the

Trying to get firmware, boards revision info, resistor configurations for TDS744 (NON A version). Are there any contacts for guys back in the day that were local shops doing c al work and