When were you at the Melbourne Hamfest? I was there Friday and bought some things. I sent back Saturday and it was DEAD.

Actually, the 4558465M uses a 1.5 Times Multiplier. Part # 152-0635-00, see Page 12-3 of the TEKTRONIX Semi-Conductor Catalog, which gives the specifications for most all of the different TEK

I still have the 556 (all 96 lbs) available if anyone can arrange a pickup in and around Jupiter FL. I am willing to drive an hour or so to meet up if necessary. Several people wanted it and I

Hi, Barry, Well, my philosophy is if I can't have quality, I'll go for quantity. At least it works for fast food... --Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford

Tom, Wow. Did you know you've written a lot of books?! Thanks, Barry - N4BUQ

If you didn't like it, then, no, I'm not that guy. Otherwise, yes. -- Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA

Um are you the T.H. Lee that wrote the "A Nonlinear History of Radio" intro for "The Design of CMOS Radio-Frequency Integrated Circuits"?

Hello Group, I am interested in getting my hand on a 7934. I have a 7S12 TDR/SAMPLER with the S-6 Sampling Head and the S-52 Pulse Generator Head, in beautiful condition. I would really love to put

Hello, Good comments, thank you. I was sort of hoping for this information - just didn't want to end up with an "Ooops, should have known that..." when the devices overheat. Feels a bit more

adesilva_1999@... added the album TEK 465M U550 block construction: This is in ref. to the thread: Tek 4654M; No Trace, No +5V, No +95V; Help The following photos have been uploaded

Just uploaded the images: https://groups.io/g/TekScopes/album?id=255419

Thanks. In my case, it was not satisfying to me to do only the EHT section as I figured out the rest of the components also can fail any moment due to the age. Once I figured out the internal

This is very helpful information, David. If you haven't already done so, perhaps sending it on to tekwiki would be worthwhile. -- Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane

PSA: CERAMIC STRIP LOCATIONS WITH RISK OF ARCING IN TYPES 535/545 David Wise October 2020 1. Delaying Sweep chassis, lower left corner. The two rightmost terminals on this strip are +500V and

I am very impressed by how much deep knowledge about cleaning aluminum you guys possess! I just let gunk accumulate until it evolves into a lifeform. I didn't realize that there was an

For cleaning aluminum filters, has anyone tried steam cleaning? I have tried steam cleaning on greasy oven pans (stainless and enamel) and it works like a charm, though you want to be careful where

Made a similar repair to my 455 scope. I have a small 3D printed enclosure for the HV Multiplier that I will share the STL File for. I built the same multiplier for my 455. Photos of results are

That should read as: Page 3 will have the most of the important info." Sorry for the error.

I have a 465M where the tripler died in the U550 block. If you want to see what I did, follow this thread: https://www.eevblog.com/forum/repair/tektronix-465m-repair-210933/msg2695668/#msg2695668 I