Tektronix 2467

[Johnny10]

I have just a quick question for the 2467 fans out there.
What is the advantage of the 2467B over the plain 2467?

More collectible?
A feature beside 400Mhz that I am missing?

Just wondering, I have a chance to upgrade from my 2465A.

[tecman]

Upgraded design (smd, newer board, etc) but otherwise no real advantage other than the BW

Paul

[jmelson]

Upgrade from 2465 to 2467?  You probably DON'T want to do that.  The 2465 is a direct view CRT.  The 2467 is an image intensifier tube with a smaller screen size.  If you have to view low rep-rate events at very high sweep speeds, the 2467 is better, but for most general scoping, it is a royal pain.  If you turn the brightness up, the scope shuts down after a couple minutes to save the tube.
If you really need to see low rep-rate events, get a digital scope.  WAYYYY better than the 2467 for about a dozen reasons.  I have a 2465, it is a pretty good scope, and about the best analog CRT scope around.  (A and B suffixes have a bit higher bandwidth.)  The 2467 is the same basic scope with the microchannel plate intensifier, and as I mention above, it is a pain, and was only useful before digital storage scopes came out.  Now, it is just obsolete.

Jon

[KE5FX]

Unless you're starting a museum, you probably don't want a 2467/2467B for everyday work.  It's a technological dead end, albeit a fascinating one.

The 2467B offers a bit more bandwidth and a less-aggressive 'screen saver', at least in later firmware versions.  The original screen saver is far too eager to shut down the CRT drive.  It renders the scope more or less unusable in the real world.

The 2467, on the other hand, is said to be more reliable, since Tektronix hadn't yet sold their hybrid fab to Maxim.  Some of the Maxim-era parts are reputed to be problematic, like the infamous U800 chip. 

I've owned a couple of both models and never had a problem with either, except for the aforementioned beam timer.

[Johnny10]

Well I do like all these old scopes.
Good to know about the screen saver.
Do I need the 2467?  Not really, I have 9 or 10 scopes now.
I was just curious about the difference between the two scopes.

My 2465 just sits around I use a Tek DSA 602A most of the time because of the differential plugins.
And because it is big !

[David Hess]

The 2467B is a little faster and 4 to 12 years newer.  It uses Dallas NVSRAMs instead of EAROMs.  There might be some minor feature improvements but I am not sure about that as I only have experience with the 2445B.

[ubata]

I wanna to buy a used Tektronix 2467b, how can I know how much hours that be used?

[David Hess]

I wanna to buy a used Tektronix 2467b, how can I know how much hours that be used?

You cannot because the hours meter can be trivially reset.

[KE5FX]

The 2467/2467B CRTs are usually in pretty good shape, actually, because of the aforementioned screensaver.  Burn-in due to abuse could be a possibility, although people were usually pretty careful with them due to the high cost.  I've never seen one with weak emission or a worn-out MCP intensifier.

[jonpaul]

bonjour à tous

Since 1990s, we used, caibrated  and occasionally repaired the Tektronix 2465/7 and 2465A, and 2465B, 2467B.   See the group.io tekscopes and tekscopes2 groups.

2467/AB have  BW 400 MHz and MCP CR4 with smaller size display but much brighter and faster writing rate than non MCP. Super for low rep rate and single shot use. 

CRT  MCP has limited life.
Wear effect....some areas of CRT get dimmer due to fixed display like the readout area. Tek has a current integrated CRT beam timeout, and "woubulates" the readouts slightly.
None of my -7 have visible damage

Select the best scope by serial number, your requirements, phiscial conditions

Beware the A5 control PCB of certain models had SMD lytics that leak corrosive electrolyte and damage the fly by wire control system

Finally expect that any NVRAM (Dallas 1227) will have dead internal battery and need removal, socketing and replace with new NVRAM or FRAM, then complete recalibrate.

See the very long threads here (2465B teardown) and on tekscopes at Groups.io

I can only marvel at the fine circuit design, engineering, mechanical of these classic and last Tektronix CRT scopes!!

Bon Soirée

Jon

just the ramblings of an old retired EE