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Re: Troubleshooting Tips
Brilliant,
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Nice job, especially providing an index. If I ask really nicely can you crop the bottom of the pages so it all fills the full space? Cheers Robin In message <c3cd97+kveb@...>, zenith5106 <hahi@...> writes Hi, --
Robin Birch |
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Tek tunnel diode pulser
Hi, Gang
I picked up a Tek 067-0554-00 tunnel diode pulser. (There's one for sale on eBay now, it you'd like to see a photo). It is a little box that goes between a 100 volt square wave generator and the scope's vertical input, to test the risetime. The effect of the tunnel diode is to "sharpen" the edge of the square wave. Does anyone have the specs for this unit? I'd like to know the specified risetime of the tunnel diode pulser output and the type of tunnel diode used. There are only a few parts in the box, and should be easy to home-brew. I think a Tek TU-5 tunnel diode pulser is the same thing, except it uses UHF type connectors instead of BNC. The manual for the 1A1 (Nuvistor input) plug-in, page 6-9 shows a TU-5 in use to check risetime. Thanks, Ed Knobloch |
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Tektronix Pocket Signal Generator
jjartstor
Hello All,
I received a Tektronix Pocket Signal Generator 015-0580-00 with the 465 that I purchased. It has a scope connector on one side and a short cable with a bnc connector on the other. I'd like to know what it's used for. I searched Google and found virtually no info on it - except a blurb in Japanese - which had no value to me. I'm intrigued by it. If anyone knows how to use it, please clue me in. Best, John |
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Troubleshooting Tips
Hi,
As I started to clean up the mess with all my manuals the other day I came across a publication I didn't even know I had. It's an almost 100 pages document called "Troubleshooting Your Oscilloscope - Getting Down to Basics". I have no idea when or where I got it. It could have been handed out in some training class or it could have been ordered it by P/N. Anyway, I guess it could be of some interest to the group so I scanned it and it's available for download at in the form of a 3.5M zipped pdf document. /Zenith |
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TEK 576 FS
w1ksz
I have a Tektronic 576 Curve Tracer, comes with the Transistor/FET
and the Diode Test adapter. Also has an "original" Operating/Service Manual (unheard of these days). Now the bad news, you have to come and get it, it's too heavy for me to ship (darn near broke something getting it in the house !!). I am located in Lexington, MA, NW of Boston. Price: Make me an offer, it has to go. Trades ? Looking for a Tek 491. Regards, Dick, W1KSZ |
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5103N/D13 OPT07 rear signal O/Ps
Tim Phillips
Morning all;
I have a 5103N/D13 which *I think* is equiv.to the 5113. Could someone tell me what the rear-signal-out comprises? The rear panel of the 'scope is punched for the sockets; is it just a matter of picking off the signals from the plug-in connector or is buffering needed? The manual download from Datasouth doesn't shed any light. many thanks Tim |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Steve Wiseman
18/03/2004 02:23:53, "Richard W. Solomon"
<w1ksz@...> wrote: Using a 7B92A in a 7103 ... tsk, tsk, tsk ...Only one horizontal slot in an R7103 - definitely a drawback. Anyway, I'm normally probe-limited well before 200pS/div gets useful. Oh look, a slightly sloping line :) Steve |
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New file uploaded to TekScopes
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the TekScopes group. File : /Operators Handbook pages to No 5.PDF Uploaded by : nifty58au <nifty58au@...> Description : Part one of Handbook will upload rest if requested You can access this file at the URL To learn more about file sharing for your group, please visit Regards, nifty58au <nifty58au@...> |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Steve Wiseman
17/03/2004 22:47:49, "Richard W. Solomon"
<w1ksz@...> wrote: Using the 7B92 in a 7704 is akin to stuffing a Ferrari engine in aChevy pickup. Looks and runs nice, but ...Ah, you've met my tastes in automotive design, then :) Also, if eBay throws you 7B92s (or Ferrari engines), there's a tendency to use them for everything. The 7B92 is more appropriate in the 7904.Nope. That's where the 7B92_A_ lives. (actually, it lives in my R7103, but you get the point...) The original question was "does this plugin work in that scope?" - and the answer is a definite yes... As a slight aside, is there any downside to using overspecced plugins? (other than the temptation to wind them to the (uncalibrated) endstops from time to time?) Do they have an inherently shorter life / tendency to oscillate that the scope just ignores / some other fatal flaw? Steve |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Steve Wiseman
17/03/2004 12:16:58, "Craig Sawyers" <c.sawyers@tech-
enterprise.com> wrote: I've just checked out my 7704A using a 7B92A - and it worksjust fine. None of the effects that you describe.Behaves properly with a 7B92(non-A) in my 7704A, here, too. Definftely something screwy going on. (out of interest, what's in the 4th slot, when the 7B92's in the 3rd? (There's a 7D10 in mine, for what it's worth. 'Digital events delay', which I was hoping might be useful for picking a given line out of a PAL frame - but if it's able to do that, I'm too dim to drive it, and have no manual :( Steve |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Craig Sawyers
Using the 7B92 in a 7704 is akin to stuffing a Ferrari engine in a ChevyWhereas it is true that the 7B92A is good to 500ps/div and the 7704A is only specced at 2ns/div, there is absolutely no reason that the combination should not work just fine. I find the 7704A is still pretty darned good to 1ns/div. And yes - I generally use the 7B92A in either my 7904 or 7834, but the question was asked about whether it would work in the 7704A - and the answer is yes it does. Cheers Craig |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Richard W. Solomon
Using the 7B92 in a 7704 is akin to stuffing a Ferrari engine in a Chevy
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pickup. Looks and runs nice, but ... The 7B92 is more appropriate in the 7904. 73, Dick, W1KSZ -----Original Message-----
From: gettingalongwouldbenice [mailto:gettingalongwouldbenice@...] Sent: Wednesday, March 17, 2004 1:35 PM To: TekScopes@... Subject: [TekScopes] Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly) I fixed the 7B53As. The board mounting screws on one of the inner boards were loose. Tightned the screws and both the 7B53As now behave themselves. That didn't help the 7B92. I tweeked the HF compensation for minimum effect. It's still not right, 20nS ramp looks like a stairway, but at least the sweep doesn't run backwards any more. This is gonna be impossible to find by probing around with a scope. The effect is smaller than the ambient ground noise. Extender just makes it much worse. mike --- In TekScopes@..., "Craig Sawyers" <c.sawyers@t...> wrote: NoneI have two 7B53As and one 7B92 sweep plugins.I've just checked out my 7704A using a 7B92A - and it works just fine. of the effects that you describe. Yahoo! Groups Links |
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Re: 7514 storage scope
Peter van Daalen
What is its weight ?
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Peter van Daalen, PE1ECM Amsterdam - The Netherlands. ----- Original Message -----
From: Craig Sawyers To: TekScopes Sent: Wednesday, March 17, 2004 8:25 PM Subject: [TekScopes] 7514 storage scope I've mentioned this on the list before - this particular seller is trying every way he knows to sell a 7514 storage scope. He's now got it on for $50 buy-it-now including four plug-ins. Who's going to save this thing from the dumpster? If I was the seller, and having relisted it three times at ever lower prices with not one single nibble I'd have chucked it by now. Item number is 3804496713. Craig PS although they come up every now and again on eBay, they seem to be quite rare; Tek only made them for one year and then discontinued them. |
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7514 storage scope
Craig Sawyers
I've mentioned this on the list before - this particular seller is trying
every way he knows to sell a 7514 storage scope. He's now got it on for $50 buy-it-now including four plug-ins. Who's going to save this thing from the dumpster? If I was the seller, and having relisted it three times at ever lower prices with not one single nibble I'd have chucked it by now. Item number is 3804496713. Craig PS although they come up every now and again on eBay, they seem to be quite rare; Tek only made them for one year and then discontinued them. |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Craig Sawyers
I fixed the 7B53As. The board mounting screws on one of theI had exactly that problem with my 7B85. One of the spacer pillars was loose - and this particular one was necessary to ensure ground continuity between the boards. Symptom was that the readout on the CRT display was intermittent. Craig |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
I fixed the 7B53As. The board mounting screws on one of the
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inner boards were loose. Tightned the screws and both the 7B53As now behave themselves. That didn't help the 7B92. I tweeked the HF compensation for minimum effect. It's still not right, 20nS ramp looks like a stairway, but at least the sweep doesn't run backwards any more. This is gonna be impossible to find by probing around with a scope. The effect is smaller than the ambient ground noise. Extender just makes it much worse. mike --- In TekScopes@..., "Craig Sawyers" <c.sawyers@t...> wrote:
I have two 7B53As and one 7B92 sweep plugins.I've just checked out my 7704A using a 7B92A - and it works just fine. None |
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Re: Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
Craig Sawyers
I have two 7B53As and one 7B92 sweep plugins.I've just checked out my 7704A using a 7B92A - and it works just fine. None of the effects that you describe. Craig |
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Dual Sweeps (7B53A, 7B92) work in 7704A? (correctly)
TEK 7704A with dual sweep funky??
I have two 7B53As and one 7B92 sweep plugins. In a 7704A, they all have similar problems. There's no pretrigger leadtime, can't see the leading edge of the waveform. The trace unblanks about 4 nS after the edge. If I crank up the intensity enough to see that 4nS, the rest blooms badly. Twiddling the trigger level control moves moves the edges all around during the first 150 nS or so. The sweep isn't even monotonic in that first 150nS. The sweep actually reverses in 16nS intervals creating a bright spot and severe distortion if you move an edge through the region. Acts like there's some serious ringing on the first part of the sweep ramp. There's nothing in the cal procedure about compensating this region. I haven't tried poking around inside on an extender yet, but I expect the extender effects will mask what I'm looking for at these speeds. I've got three 7704As that all exhibit this problem. A 7B80/7B85 combination in any of the mainframes works flawlessly. I've got 20 nS of pretrigger visibility. No nonlinearity of the sweep. No blanking issues. So, is there a failure mode in the dual sweep plugins that can be corrected? I've got three that behave similarly, but it's hard to believe they could ship 'em this way. Fixes? Mods? Suggestions? Thanks, mike |
zenith5106
ROLYNN PRECHTL K7DFW
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