P6015A with loose cushion ring
Hi folks,
?
I have a P6015A where the black ring is loose. The ring (made out of some kind of rubber, maybe black silicone) is shown in manual pg. 2-14.
Manual says on pg. 2-11: ¡ring may not be removed.
The grey silicone, that bonded the ring before is present. The cushion ring fits exactly on the grey silicone. Maybe a previous owner peeled off the ring sometime.
It is no problem to assemle all parts properly. (That seems to be the case at least.)
A rough check with 230V mains showed plausible values. (Probe is designed for 1.5 to 20 kV.)
The question is: Can arcing or other problems occur? Is performance degraded?
?
Pictures see (not my probe, just for comparison):
/g/TekScopes2/album?id=281880
?
Manual see:
https://w140.com/tekwiki/images/3/3d/070-8223-05.pdf
?
Thanks in advance.
?
Stefan
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7844 mode switch repair or swapping with "dedicated" version
I have a 7844 that sort of works. The mode switches are intermittent -- odd level shifts or opens happen when
pushing the buttons. The board that contains vert and horiz switches and vert, horiz separation pots is not hard to remove.
Do you think it will respond well to washing out with naphtha?
Does anyone know if swapping the board of option 21, dedicated vertical mode, works from low serial numbers to high? (dedicated vertical mode means left bay is always beam 1, right vert is always beam 2.)
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Re: TM5003 fan noise / fan replacement
Hi everyone, I've done the replacement, see the topic here (on the other group):? /g/TekScopes/topic/23853435Replacement parts are easy to find, it is off the shelf industrial AC fan. TM5003 and TM5006 share same part number for the fan, so it is basically oversized for the TM5003 (3 slots vs 6 with 1 high powered). The original spec'd ones are 75CFM so I guess you can easily go for 50CFM or maybe a little bit less. I had "mixed" result, but my expectations ("silent PC style" low noise performance) were a bit too high. Compared to an old one (with maybe lots of hours on it), a replacement will always improve thing, and maybe fan technology has improved a bit. I guess my "mistake" was to go for the 76CFM (to much the spec) at 32dB instead of a 50CFM at 28-29dB. Best regards,
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Spotted: Tek 576 adapters
https://www.bidspotter.com/en-us/search-results?searchTerm=Tektronix&PublishedDateTimeUtc=2022-11-11T13:48:25&sortTerm=startDate
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Re: Tektronix 2465b scope
Chuck Bravo pour le pr¨¦ciser r¨¦ponse
As always, you are the expert in 246x/A/B!
Bon Soir¨¦e
Jon
PS...Still struggling with the 2467B with bad CTTOPT.
Lab in Paris has just Hameg 102, 302 analog 1980s scopes and a 2 MHz funct gen..
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Re: Tektronix 2465b scope
Why not?? U800 is just a 24 Pin DIP, of course it can be replaced, I've done dozens of them.
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Re: TM5003 fan noise / fan replacement
Is it possible your fan is bad.? Those AC fans just use bronze bearings which can get loud when they dry out.
I cringe a little when loud fans are simply replaced with quite ones as if that is the only parameter that is important.
You need to think about airflow also.
Look for an AC fan with similar airflow and find the quietest one.
--Victor
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Re: FS: Tektronix P6051 DC-1 GHz active FET probe
I'm interested but despite going through the help section I have no idea how to PM you.
John
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It's a prop in many movies, the 1980 made-for-TV adaptation of The Lathe of Heaven has a scope that I think was a Tek. In one of the Teminator sequels there's a 500 series just incidentally, the video for Benny Benassi's Cinema also has one.
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Re: Tek scope Book On Line
Thank you !
Bernie Schroder
-----Original Message-----
From: Wallace Gasiewicz via groups.io <wallydoc@...>
To: [email protected]
Sent: Sun, Nov 6, 2022 5:18 pm
Subject: [TekScopes2] Tek scope Book On Line
Just for anyone who is interested, links to the book are in the blog post
http://www.k100.biz/parade.htm
Seems a lot of people like it.
Wally KC9INK
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Just for anyone who is interested, links to the book are in the blog post
http://www.k100.biz/parade.htm
Seems a lot of people like it.
Wally KC9INK
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Re: TDS460 - time to boot
I have 2 TDS460A scopes. they both take quite some time to boot.? I have not timed them, but 1 minute sounds about right.?
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Re: TDS460 - time to boot
Sorry, it actually also is a 460A. And indeed it has option 13 and 1M. It sounds like it's in good shape? Radu.?
I have a TDS460A with the 1M option and it takes a while, basically like a PC with a digitizer.
Sam Reaves
ARS W3OHM
Owner / Moderator of: LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io Sprint Layout Group on Groups.io?? Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)
On Sun, Nov 6, 2022 at 12:53 AM Radu Bogdan Dicher < vondicher@...> wrote: Actually, the HP54522A takes just about 5-6 seconds before it's up and running.?
On Sat, Nov 5, 2022 at 9:51 PM Radu Bogdan Dicher via <vondicher= [email protected]> wrote: Hi all,
I recently repaired a TDS460, but I am a bit taken aback by its about 1 minute 10 seconds boot time to fully up - is this normal? My HP 54522A takes a mere maybe a dozen seconds to being able to perform measurements.?
Once up, everything functions perfectly and in spec. The only less than ideal thing I am aware of is one of the internal batteries is not in best shape (the other one is good).?
Thank you,
Radu.?
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Re: TDS460 - time to boot
I have a TDS460A with the 1M option and it takes a while, basically like a PC with a digitizer.
Sam Reaves
ARS W3OHM
Owner / Moderator of: LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io Sprint Layout Group on Groups.io?? Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)
On Sun, Nov 6, 2022 at 12:53 AM Radu Bogdan Dicher < vondicher@...> wrote: Actually, the HP54522A takes just about 5-6 seconds before it's up and running.?
On Sat, Nov 5, 2022 at 9:51 PM Radu Bogdan Dicher via <vondicher= [email protected]> wrote: Hi all,
I recently repaired a TDS460, but I am a bit taken aback by its about 1 minute 10 seconds boot time to fully up - is this normal? My HP 54522A takes a mere maybe a dozen seconds to being able to perform measurements.?
Once up, everything functions perfectly and in spec. The only less than ideal thing I am aware of is one of the internal batteries is not in best shape (the other one is good).?
Thank you,
Radu.?
|
Re: TDS460 - time to boot
Actually, the HP54522A takes just about 5-6 seconds before it's up and running.?
On Sat, Nov 5, 2022 at 9:51 PM Radu Bogdan Dicher via <vondicher= [email protected]> wrote: Hi all,
I recently repaired a TDS460, but I am a bit taken aback by its about 1 minute 10 seconds boot time to fully up - is this normal? My HP 54522A takes a mere maybe a dozen seconds to being able to perform measurements.?
Once up, everything functions perfectly and in spec. The only less than ideal thing I am aware of is one of the internal batteries is not in best shape (the other one is good).?
Thank you,
Radu.?
|
Hi all,
I recently repaired a TDS460, but I am a bit taken aback by its about 1 minute 10 seconds boot time to fully up - is this normal? My HP 54522A takes a mere maybe a dozen seconds to being able to perform measurements.?
Once up, everything functions perfectly and in spec. The only less than ideal thing I am aware of is one of the internal batteries is not in best shape (the other one is good).?
Thank you,
Radu.?
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WVR500 control part number or modification?
WVR500 controls are easy to break was there a modification or part number of a replacement?
ever released?
--
Jeffeelcr
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Re: [TekScopes] Fast edge pulse generator ...
Risetime and BW are related but NOT the same!
Read the TEK Vertical amplifier circuit concepts book.
Your choice Depends on the desired max RT/BW being tested.
We found the Best is the Leo Bodnar 40 pS pulser, L/60
The old TEK TD pulsers TU-5 or 152-0254-01 sometimes show at ham fleas or epay. Blown TD can be replaced with Russian clones.
Needs a 50..100 V (slow rise) input drive.
TEK PG506 CAL gen has a fast pulse output.
Uses TM500/5000 mainframe.
Beware that ANY cable/connector/adapter between the PG out and scope 50 Ohm in WILL affect the RT and BW.
We directly attach Leo B BNC to the scope set at 50 Ohm.
Rather than any cables, we use several BNC elbows, Tees, MM, FF adapters if needed.
NO probes should be used!
Jon
Jon
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Re: Fast edge pulse generator ...
http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=124&products_id=303
Lives up to the spec on my sampling scope. Reinhard Metz?
Sent from my Verizon, Samsung Galaxy smartphone
toggle quoted message
Show quoted text
-------- Original message -------- From: David Slipper <softfoot@...> Date: 11/1/22 1:12 PM (GMT-06:00) Subject: [TekScopes2] Fast edge pulse generator ...
Hi, I am trying to put together a test device to check the BW of my scopes. Can anyone suggest a simple module or design that would do the deed without costing the earth ?? I probably need a rise-time of < 1ns. Thanks in advance, Dave
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Re: [TekScopes] Fast edge pulse generator ...
On Tue, 1 Nov 2022 at 18:07, David Slipper < softfoot@...> wrote: Hi, I am trying to put together a test device to check the BW of my scopes.
Can anyone suggest a simple module or design that would do the deed
without costing the earth ??
I probably need a rise-time of < 1ns.
For ~300ps into 50ohms, have a look at??
To get a reasonable edge, decoupling is critical.
Another simple alternative is the "cal out" generator in Tek 485s, at under 1ns. ?
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Stefan
Froggie the Gremlin
Michael W. Lynch
Sam Reaves