Hello, New member, first post. My first scope, a model 2445 just entered through the doorstep and I have two questions. Is there a way to check operating time and power cycles like on 2445A model?

Hi all, I am about to calibrate a 2465B, but I have no tunnel diode pulser. The parameters are gone from memory. Is the calibration the same as the 2430, that you have a program that expects the

Thanks, Steve -- I don't have another scope, or I might not be so energetic about this one! (These are mostly tools, to me, though I do have affection for them as themselves.) You probably see my

Ooooh! Pain, after a fashion. I went back out to the shop to check the grid voltage on the comparator (V308, 6U8), turned on the scope, and it worked! Sweep is back, !!!!?????. I did change one

David, I think you are getting close. If you had seen a single sweep, then the miller integrator / sweep generator is probably functioning. This points to the trigger, or possibly the multivibrator

Thinning is good, particularly to aid those who have to figure out what to do with what remains. I just haven't gotten to that point yet... -Dave It also implies that as our memories fade with

I like that reasoning. It also implies that as our memories fade with age, we should start thinning the herd as we get older. Tom

Gentlemen, How many oscilloscopes should a gentleman have? the correct answer is 1 more than he currently has. jim

Greetings, Matthias, Thanks for the informative reply and sharing your experience with us. Moments ago, I exposed the left side of the 576 and explored... Smoking resistors may certainly have

Sam, in mine it was the resistor in the HV box. You could have a look inside this box and look if this resistor is getting hot. Its on the right upper side under the metal

My personal criterion is that I should be able to remember the location and condition of each scope I own and how I acquired it. I should be able to list them from memory. When they start blurring

I think the "-57" on yours is the single sweep option, mine doesn't have that, so I'll just have to guess. Are you saying the single sweep works? If so, is that repeatable? Or did it

Don't have a complete inventory - from memory, some in multiple copies,some parts units; 511AD, 512, 513, 514, 519, 525, 526, 528, 529, 531 brown, 531A, 533A, 535brown, 535, 535A, 541A, 543, 545,

I believe mine has the P7.

The toggle switch is "Single Sweep / Normal". Not an extra light, it's a button, label "Reset"

Hi all, I am about to calibrate a 2465B, but I have no tunnel diode pulser. The parameters are gone from memory. Is the calibration the same as the 2430, that you have a program that expects the

Hi, Cliff -- I did this, sawtooth out jack is steady at ~ 19 volts, delayed gate out, zero. I switched to "Single Sweep" (speed at 1 cm/sec) and saw the spot move to the right -- once. After a few

Sorry about the incorrect reply - there are two troubleshooting threads currently open - a 532 with no sweep, and the 515 vertical. I am contributing to both and replied to this one incorrectly)

Thanks Jerry, I can take a photo just for you to see, but on one of them all letters gone... so no point checking your stash for that (supper thanks for the kind offer anyway.. if it was just one, I

OMG, these are pretty much instruments. For my part I am happy with my fewTeks: 547, 564B, 180A, 1A1 (Bad CH1 Nuvistors), 1A7A, CA, 3A6 and 3B7. For thefuture I hope to get a Sampling system (1 or 3