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That p7 is actually a double phosphor - It was used in various radar/altimeter/loran displays. It fluoresced bright blue- very fast decay rate, then afterward in orange. The radar 'scopes usually had

I recently brought my 2465 back from the dead thanks, in large part, to my 465M that I also brought back from the dead. I learned early, while bringing a 510, 511 and 511A back from the dead in my

The BEST (and as far as I know the ONLY) extremely comprehensive reference list of CRT phosphors I have ever found is the one compiled by Patrick Jankowiak KD5OEI from many different sources. It

The? SW503 seems scarce.? Does anyone have a working unit which they might part with for a modest price? If this is a goofy request, let me know why.

Sorry abut that folks - I still haven't mastered my new email client - that should have gone to Miles and not to the list. -- Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA

I have a NOS RCA 3WP1 with a mu metal shield that I bought new many years ago. I bought it for a backup for a scope I was traveling with, and never even powered it up. This is about the lowest

Miles - It is the largest volunteer genealogy project in the country. The site for West Springfield is at: https://sites.rootsweb.com/~mahampde/towns/westspringfield/index.html but there is not much

True, but Wikipedia trends over time toward correctness. The problem with printed and non-editable Web-based encyclopaedias is that their wrongness is set in stone.

Hi, Try this very good document of H?kan : http://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf If you remove the switching transistor, you can feed a 43VDC into the scope to temporarily

Dale, I notice your deep involvement in genealogy. I am a descendant of MilesMorgan who settled West Springfield (1600's)..there is a statue of him in Court Square. I'm not familiar with the USGenWeb

Hi everybody I have a tektronix 2230 that I got from one of my friends and that was lying with me for one year. Last week I tried to put on it. But unfortunately the ac line tripped. I opened the

Hi everybody I have a tektronix 2230 that I got from one of my friends and that was lying with me for one year. Last week I tried to put on it. But unfortunately the ac line tripped. I opened the

First, do you have any LED lamps in the near area? Some of them radiate a lot of trash. Make sure the CRT shield has a good ground connection. It probable is a good idea to check/replace the PS filter

That's a mighty jaundiced eye you got there.

I met Doc when I was a student in the MIT High School Studies Program in the mid '60s. Early on I spent some time wandering around and familiarizing myself with campus. In one corridor there were

The ugly of it is that someone else can uncorrect it. -- Dale H. Cook, Member, NEHGS, AGS, MA Soc. of Mayflower Descendants; Plymouth Co. MA Coordinator for the USGenWeb Project Administrator of

Coincidentally, I've been looking at getting one of those over the last few days. Unfortunate what the bulbs cost for them these days. I suppose if I watch long enough... Thanks, Barry - N4BUQ

?ann lau., 27. jún. 2020 kl. 06:19 skrifa?i Roger Evans via groups.io <very_fuzzy_logic@...>:

Thanks for the eBay link to the button repair kits, I am intrigued by how they work since they have no knowledge of the geometry of the conductors that they have to bridge when the button is pressed.

Thanks for the clarification, John. What had me puzzled was the mention of "gold foil" Colin.