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We have a lot of Tek parts and CRT's from 7000/5000 series and some 4xx series portable scopes. Happy to sell, swap and trade bits if it will help get everybody's gear up and running, and we have

Hi TekScope Fans, I just wanted to let you know I am here and listening in case you have a question or two I might be able to help you with. I want to thank the moderator of this forum for inviting

Hello, and welcome to the group. There's only about 10 of us so far, so if you can dig up some more members, or have ideas on finding more, great! I know there are tons of ham lists on eGroups --

Michael Dunn wrote: Scopes like the 502 and later 502A (and still later 5030) were used a lot in biomedical research. They were cheaper than storage scopes and had enough sensitivity to directly

Though frequencies are usually low in such work. Were contemporary chopped scopes all too noisy? Wouldn't one need storage to capitalize on their dual-beamedness? Michael

Well, I finally got the manual for my 1S1 1GHz sampling plug-in. It's filled with exotic diodes. About 5 tunnel diodes of varying type and package. And, nine(!) GaAs (Gallium Arsenide) diodes (5

Does anyone have any data on Nuvistors (miniature metal-envelope tubes), or have any to sell? I could use an 8056, and have some 7586s...

What we really need here is a genuine Tek engineering type that knows circuit design using tunnels and GaAs diodes. I will see if I can recruit one to join this reflector. This is way beyond a

Hi, I've joined this group for keep in touch with other enthusiasts of old instruments, of course Tektronix too. Why does neary everybody seems to fear publishing his name and some info about his

Guys (is Bobbi on here yet?), I usually lurk in most email groups that I've joined. Note that this is not fear-based; I usually won't post unless I feel I have something worthwhile to contribute. I

G'day... :) (I'm sending this to the group as well as direct to you, Michael...) Sometime on Mon, 25 Sep 2000, you wrote: Well, for a while there I was wondering why my email program was sending

Hi Everyone, Well, if we are introducing ourselves, let me have a go... My name is Arnoud van der Wel, and I am situated in Enschede, the Netherlands. My 'discovery' of old Tek scopes started with a

Hi Arnoud, :) Sometime on Thu, 28 Sep 2000, you wrote: Unfortunately, these days, "small is beautiful"... Gee, I remember when a 7904 would have been worth a *lot* of money. I guess that makes me

I just tried it and it is still there! So the problem does not seem to be on my end of the line.... Regards, Arnoud.

Hello all! First post here for me, but I've been lurking for a little while. I'm the proud owner of a later model 535A, complete with CA plugin, all manuals, probes, and the scopemobile. After

Tell us more please! The fans on our 549s don't work too well - they start out seized, and as the scope warms up, they start to spin, eventually reaching a decent

G'day... :) Sometime on Fri, 29 Sep 2000, you wrote: Hmmm... Well, now you're asking! :) It's 25 years since I did one, but It was simply a matter of removing the fan motor and disassembling it,

Sometime on Thu, 28 Sep 2000, you wrote: Hmmm... I double-checked the url (I'm having trouble with this mail program and web addresses), so I wonder what the problem is? I'll try again

Sometime on Thu, 28 Sep 2000, you wrote: I just tried again, and same result. :( By substituting "www" for "margo.student" and dropping the "/~wel/..." I was able to get to the university, but was

Is anyone familiar with the characteristics of Nuvistors? I ask because I do have some data sheets, but the curves don't look like normal tubes or FETs. Instead of a mostly constant-current