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Bruce, the + sign is unambiguous, that lead is definitely the postive lead.? The 'bent knee' lead may be the + lead but I am not aware of that as a convention so trust the markings.? Likewise the

I found two resistors next to the keyboard header on the CPU board. One was about 130 ohms to Ground, the other was about 120 ohms to +5V. The other end of both resistors next to the keyboard header

Beginners can become skilled users and restorers of any type of equipment if properly mentored. But if they are left to languish for themselves it can be a very steep hill to climb. Before they

YIKES! Hi John, I would like to make amends for anything I said to Chuck. I have known him as a contributor to TekScopes for the past 17 years. I consider myself fortunate that he has shared his

Hi All: I'm reading your posts... and I got a couple of good PMs.too. For those lost in this long thread, if any are any... the sentence... "Encouraging beginners, what are we accomplishing." is not

Roy, Usual disclaimers apply :-) I completely understand your point of view, and I have to admit I struggle a bit as I can tell you did when you posted this message. I am not what you would call

Hi Graham, I try to treat people that way, too. After my brief adventure with C1091 and C1093, I'm doing the same with tantalum caps in this scope. The leads on this tantalum are not symmetrical to

Hello Roy, I haven't read that long thread you referred to but the answer to all your valued observations must rest with the individual, so motivated to reach out for assistance. The Tek group is

It's a lot easier to fix a scope if you have a working scope. I bought a 60 MHz dual trace Dumont 1062 from Tucker in Dallas around 1990 for $300+. About a week after the 30 day warranty expired

Hi Roy, I understand where you are coming from with your post. I also followed initially the thread started bu ciclista41@ with "475 questions", and I answered some of them. I was not the only one,

Hi Eric! Thanks for your suggestions. Just like your advice to ask a million questions, I appreciate as much input as I can get. I look forward to sharing in the satisfaction you obviously enjoy

[email protected]> wrote: Looks like my first post on here was back in 2014 ( /g/TekScopes/message/103234), and it was a very similar story back then. Without the help and

Hi Friends (and I don't say this lightly) I'm a noob at oscilloscopes as they have always been out of my reach to purchase. I have worked many years and mostly depended on my trusty Multimeter to get

Well, you can take the Bayesian approach... a subjective interpretation of probability models, with feedback training... it's as legit as the frequency approach. But anyway... back to Tek. Some great

As a single data point, I've killed [1] my 455 and resurrected a 2440.? So I guess my net phosphor footprint is zero, for now. [1] well, I expect it's repairable, but HV scares me, as it should. --

"What are we accomplishing"...quite simple really, keeping the hobby, and some of the highest quality stuff ever bestowed the label "Made in USA", alive! Newcomers are lifeblood, and sour old men

Sorry if a bit off topic - "Statistics are like bikinis and Speedos; what they reveal is interesting but what they conceal is vital." SteveH [email protected]> wrote:

Larry, You made me laugh with this one! TRUTH! -- Michael Lynch Dardanelle, Arkansas

I have hesitated to mention this as a possible approach to the filter caps in the 475 because: 1. I don't know for sure whether the layouts between the 465 and 475 are identical 2. The design is,

Thanks Chuck, Jamie, Larry and others for your posts on this. As a relative "beginner" in scope repair I could not say enough good things about the encouragement and wisdom available in this mailing