Thanks, I can't keep up with it. Ugh. It's really painful to see the remains of once-great companies be drones in a corporate army. =[ Sean

Fortive ows them all now. Regards Hardy -----Oprindelig meddelelse----- Fra: TekScopes@groups.io [mailto:TekScopes@groups.io] På vegne af Sean Turner Sendt: 5. marts 2021 07:56 Til:

Jeff, An instrument called a "source measure unit" is what is typically sold these days as an instrument for curve tracing (and other purposes). Keithley (which is a Tektronix/Danaher subsidiary now)

Hi Dave- I'm sorry to hear that you're having trouble with that HV XFMR.... I did a lot of testing and evaluation for Bill Schell over the years and I don't remember him every testing a transformer

Kurt Rosenfeld has posted the entire line printer listing (454 pages) of the 1982 source code version 1.02 for the 7854. It's an early release but it reveals some interesting things.

All the voltages are about 86-88% of their target value. Especially -8.6V is the reference for all other supplies so if it is off by some percentage all others will be off by about the same

Chuck, Are you in need of bees wax? I might be able to get some in bulk. I happen to know a couple of bee keepers. I would also like to learn more about the transformer winder when the time is

I bought this scope earlier this summer as new old stock, never powered on. Due to covid illness I never opened it until a week ago. The scope powered on ,but the trace only covered about 2/3s of

Dick, I parted out some 7000-series plug-ins that were not repairable. I believe I have some of those G-10 rods. They connect to pots via a coupler with two set screws. If that rod is what you need,

The shaft is a piece of G-10 rod that's about 7" long. It goes from the Front panel to a bushing buried in the Vertical Amplifier. I thought I would ask before I butcher the job. I am located in

I have an 492BP, and a GPIB to USB National Instruments. Can I use the HP 7470A plotter program to save screens? I tried and I get error borad GPIB0 not found.

Hi Bernd, All indications are that my new machine is going to do an even better job than the best I could do with the old manual machine. As an example, I was able to get 2/3 of the way to a full

I bet that is an AB mod pot, in which case you can repair the pot with a new shaft part. What is the length of the shaft? oh, and what part of the world are you located in. Cheers Alan

Hello group. I have a 2205-40 that I use to repair tube amplifiers and other simple audio stuff. Everything works perfectly on the scope except for the SGL SWP trigger. I haven't yet opened up the

My memory certainly hasn't improved with age.Not much else seems to have, either...But, the beeswax thing I'd be willing to put money on - fwiw. Incidentally, I still have not installed the 2nd wax

Hi Bernd, I guess the biggest indicator of a scatter wind would be the presence of a spool. The universal wind doesn't require any additional support. In addition to talking to you, I talked to

Roger: If's beeswax (It could be paraffin wax, or a silicone wax, or some other wax type potting...or not even wax) If it's beeswax... and you want to verify... put a tiny scraping of it in a spoon,

Sean, A friend of mine found a burned resistor and bad TO-5 metal can transistor on the Readout Board in a military version of the 7603. The R was 3.9k, the TO-5 can something like a 2n2905 or

Hi Steve, I can think of a few possibilities... maybe the tilting caused something to short, blowing a fuse or some circuitry. Maybe a board became disconnected. Maybe a PS line got pulled from its

Look OK. Looks OK. This is a very large resistor, you won't be able to get a good read without removing a leg. I recommend checking C1537 first, see below. I just noticed C1537 is an electrolytic