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Glad to help. I was misled by those reversed connections many times before I realized why they did it and that it was not a mistake. Dennis Tillman W7PF

On Fri, Nov 2, 2018 at 07:20 PM, Colin Herbert wrote: Hi Colin, > > Hmmm.. I think there was a small clue in the fact that the scope was a 7633. I > might also point out that the Great Detective was

Hi Raymond, Your first message said "his last message on this forum is from July 18th." which is the date I searched. His last post was actually on July 17. That is why I missed it. For reasons I

Hi Colin (laughing)..yes but Dr Watson was the diagnostician, Raymond may have been doing some spin on the blundering Watson who nevertheless sometimes got Holmes back on track through some seemingly

Dennis You are exactly correct. More user failure on my part. Thank you for pointing that

On Fri, Nov 2, 2018 at 07:06 PM, Dennis Tillman W7PF wrote: Hi Dennis, > > My records show he has never posted on TekScopes since we switched to > Groups.io in Dec 2017. There were no posts from him

Hmmm.. I think there was a small clue in the fact that the scope was a 7633. I might also point out that the Great Detective was Sherlock Holmes - Doctor Watson was his sidekick... Colin.

Hi thanks Harvey....yes that's about it.....time saving with a good spares inventory ....replace the faulty aspect of equipment and then send through the system to component level repairs. Repair was

Hi Raymond, My records show he has never posted on TekScopes since we switched to Groups.io in Dec 2017. There were no posts from him on July 18 of this year either. Dennis Tillman W7PF

ok, all I recall is I was told ( by the counter tech at tektronix in sunnyvale when my 475 went in for cal service eons ago... ) the case had to be on for something due to sensitivity/shielding and

He's active on EEVBlog forum, last post was yesterday. http://www.eevblog.com/forum/profile/?area=showposts;u=93452

FYI: I'm missing contributions from our long time, very active, helpful and knowledgeable member David Hess. As far as I can see, his last message on this forum is from July 18th. On October 7th, I

Well Dennis - I learned something there! I have a 7CT1N (no surprise there!) and have only occasionally used it for low power bipolars. I would have missed the oddball electrode mapping between

Hi Raymond, That was the easy part, the photo shows he was using a 7633 scope (lucky guy to own one of those) so it had to be a 7CT1N. Slightly harder was verifying that the traces on the screen are

On Fri, Nov 2, 2018 at 06:37 PM, Dennis Tillman W7PF wrote: Hi Dennis, > > COMMON MISTAKE: Your photo shows you did not switch the Drain and the Gate > leads when you were using the 7CT1N. I believe

I've never had a need to do any of these adjustments externally, "in the field" so to say, using 464, 465(B), 466 and 475(A) scopes for decades. The "construction" allows unguided poking at least 1.5"

Hi, COMMON MISTAKE: Your photo shows you did not switch the Drain and the Gate leads when you were using the 7CT1N. I believe when you do switch them that you will see there is nothing wrong with the

Yes that is the fet in the curve tracer. I hope I didn't blow it up trying to curve trace it.

Not precisely sure what I'm looking at. Is that the said FET on a 7CT1N in your 'scope? Because if it is, I would say that was an ex-FET. It has gone to join the choir eternal.

I don't remember it that way. The entire 475 can be calibrated sitting out of its case on the bench. The entire 465 family can be calibrated sitting out of its case on the bench. The adjustment holes