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I just got a 2465 in pretty good condition (one sharp dent in the case, a broken corner on the rear bezel, disintegrated rear cord-wrap feet, and a bent shaft on the SEC/DIV VAR knob) but after a bit

I just repaired the time base 7B53A and a new problem appears. An acrid smell came from the oscilloscope so decide to test the scope for 3 hours and the trace and readout disappeared. I measured the

I will check it later with mine -----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Dave S. Enviado el: lunes, 11 de enero de 2021 19:23 Para:

One book left Narita Airport in Japan on January 11, 2021 at 3:26 pm and is currently in transit to the destination. This will come as no surprise to our members in Japan. According to my friends at

The following files have been uploaded to the Files area of the [email protected] group. * /AM503B AM5030 Calibration Adapters.pdf ( /g/TekScopes/files/AM503B AM5030 Calibration

I received my book today in Orlando Florida. It arrived in great shape and looks like a great book. Beautiful hardcover text. Thanks Dennis for your work on this. Steve Kb4irb

Sorry, this sold very shortly after I posted the message. Tom

Hi, thanks for ur help! What about the 50uA and 100uA (.1mA) waveform with the 100k paralell? Maybe you can check it on your 577 or someone else could check it on a 576 if it looks strange aswell.

Hi Jeff, Tam, These knob don't break beyond use, sometimes the little latch inside comes loose. But this is an easy fix using silicone kit. As it turns out, these knobs are made already using a 3D

Jeff, the Tek probe cross reference from TekWiki says P6101A for passive 1X, P6106A for passive 10X, P6063B for passive 1X/10X, P6009 for high voltage 100X, P6015 for high voltage 1000X, and P6201 for

Hi, Jose'.? I haven't seen Dave Hess post on TekScopes for a long time.? Try eevblog; he seems to be more active there lately.? ? ?GL.? ?Jim Ford?Sent from my Verizon, Samsung Galaxy

Leo, These pre-made knobs are very nice. I have ordered a few score, of different types, to see how they will work. I have also (because I am an American who does not understand thrift) ordered

It occurred to me that if one were to successfully use a 7000 series plugin frame, the frame would stick out significantly, and allow you to have extra (and ventilated) room.? It wouldn't be workable

The staircase looks ok! it's not broken trace issue. The design of step generator circuit is different between 576 and 577. In case of 577 the traces synchronize with the collector supply 4 traces per

Jose, Nice scope! All of these 4xx series scopes are favorites of mine. I have not read back through the entire thread of posts. One minor issue that I see in the pictures, besides those already

Dan, Thanks for these links and recommendations. Fantastic stuff! I love all the old audio equipment! Those machines are great for teaching the history of sound recording, radio, etc. with it. I've

I guess to clean all contacts, some disassembling is required to access certain contacts (acces to intensity potentiometer is quite easy)

Dutchperson: if you send me a picture or a broken knob, I will try to 3D print a few for you. -- With best regards Tam HANNA Enjoy electronics? Join 15k7 other followers by visiting the Crazy

Jose, Jeff is correct, the non-flatness of the Ch1 signal in AC coupling should be correctable as part of the Ch1 calibration procedure. Your first picture of the Ch2 signal has the vertical

Jose, I am just going to give a quick reply to the first issue. It looks to me like there is a problem with the calibrator output. I think you have another scope so can you feed the calibrator output