Hi Bob, Have you looked at these schematics at ko4bb.com? The site looks very friendly and I was tempted to donate. But the schematics are a different story. Was this 2782 designed by Tektronix?

Thanks again Chuck for the help troubleshooting issue. I worked my way thru the circuits trying to locate the voltage drain by breaking them down into smaller circuits. Finally came upon the

Hi Tony, You have a good realistic viewpoint. I can remember 70 years ago, but let's say, 30 years ago. At that time, people also had realistic views and they stated that everything was being made

Thanks again Siggi - it turns out the problem with the trace was my own ignorance! Once I pushed the Acquire button and set the trigger to Auto I got a straight line for a trace. It's got a fair

Did you replace the rear of the scope - rear cover and metal back to be able to use the 80x80mm, 20mm thick fan? --Victor

I tried Zinc Chloride paste and the solder balls up like Mercury on glass. I was able to get a few fragments to adhere but was very much overheating the terminals causing the motor plastic end caps to

CCD hybrids in the 2430A with version earlier than -04 are problematic. Especially if they are -02 or -01, it's a lost cause trying to even use those. If you have version -04 or preferably -05 then

Thanks Dave. The 103 projects book sounds interesting. I'll check it out on Alibris. Also I accidentally ran across a site called Worldcat. Which is a worldwide library book look up site. I think I

Hi Rick, I'd be happy to work with my doppelgänger (the "other Jeff") to see if this design could be adapted to the Tek 422. Jeff (Davis) / N0DY ________________________________ Sent: Tuesday,

Hi all, For the subject project, I've gotten a quote from Seeed Fusion, a contract manufacturer I have worked with previously, but their quote for assembly is rather high. I am also obtaining a

R2770's purpose is to allow you to measure the current being drawn from the battery. To use it, you hook a high impedance voltmeter across the 10K resistor, and the voltage reading is the current

Thank you Chuck for your input. I have gone thru the U2460 ram trace test and the checkout of the associated transistors. All seem ok. I did find something strange is circuit of the - of the battery

As in you see a square wave, but chopped up, or you still see a flat line chopped up? If nothing changes, maybe the scope isn't capturing, or isn't triggered. My apologies if this is no news to you,

I'm not familiar enough with this scope to know for sure I'm setting it properly, but you can see in this photo that channel 1 is set to gnd and I still have the chopped trace:

Can you print a single transformer to a new PDF, or is that still disabled? I would like to do that for the used Tektronix transformers that I have. wrote:

And your trigger settings? I seem to remember that on startup, these scopes won't trigger, and will show whatever they last captured before power down. My 2430 is not at hand, so I can't play with it

That is with no input at all. Nothing connected to either channel, nothing connected to either trigger. I expect to see a nice straight solid line. Rich

This photo doesn't tell the whole story. What's the input signal and the settings of the scope at large? What were you expecting to see?

Ah...thanks for the info Siggi. Here you go: https://drive.google.com/file/d/1qw72EvsznoUFpUxSSReYg4XRwzbzA6a4/view?usp=sharing Rich

Hey Rich, your photo didn't make it - this forum doesn't allow attachments. Best thing to do is to upload it to a photo album and link it from there. Siggi