Re: wizzard on a tek 2232? real or hoax? i dont have mine yet to try it?
Can this or something similar be done on a 2465B?
DaveD
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--- In TekScopes@..., Artekmedia <manuals@...> wrote:
The wizard works on my 2232...this was typical of the Tektronix of old,
who at least in the background, viewed that this type of frivolity had
at its core learning and experimentation that led to real features and
future advance of the art of technology. It was also a crowd gatherer at
the booth for the sales guys at the trade shows.
Another example of this non traditional view of engineering creativity
is that at one time Tek engineers were allowed to take home factory
parts for home projects with the underlying belief if that you were
tinkering at home you might stumble onto a new application or design
that would come back to work
Dave
ArtekManuals.com
On 12/16/2012 5:22 AM, Albert wrote:
I think to remember that this has been mentioned here before, it being
secret jokes of Tektronix engineers. A modern variant of the mountain
climber trying to reach the top of the CRT in some old 500 series
schematics.
Albert
--- In TekScopes@... <mailto:TekScopes%40yahoogroups.com>,
"mikehostalek" <mikehostalek@> wrote:
_____I recently bought a Tek 2232 on ebay, (havent got it yet)
while searching the net for a manual (ill upload it after my slow
connection gets is downloaded), I came across this:
<img src=">
i'm not sure if my html is right, (it's been awhile), so here's a link
Wizzard Skatin' across your scope
<>
supposedly you can make the 2232 display this by:
1. turn the scope on
2. push the "ADV FUNKT" button once
3. push the "SAVE REF. 3" two times
5. move the "CURSOR"
6. now you have reached the so called "secret menu" here you cansee a
wizzard on a scateboard or the "TECTRONIX" logo or you can clearall
memories.
this seems like one of those things that while pointless, is still
pretty cool, if it works.
I'd call it really low risk but keep in mind there are those out there
who like to give misinformation,
its possible (far as i know) yet unlikely, that theres some glitch where
doing the steps above could do something bad to the scope. If anyone has
one and is willing to try it, let me know if it works. if not, ill try
it in a few days or so when i get mine.
--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265
|
Sony/Tektronix 318/338 firmware
| Just out of curiosity, anybody has the firmware images for a?Sony/Tektronix 318/338 Logic analyzer? |
|
Re: Interesting 7K Extenders on eBay
He seems to have made this from an old plug-in and one of the
TEK_7K_FLEX kits. Then made a very useful looking front panel.
I'm just about to go down this route as Tony Sedivy has kindly given
me a couple of these kits.
Until you pointed out this eBay item, I was a bit unsure how to
tackle building it, preferring to make a rigid extender but not
knowing how to make the supportive near end.
|
Re: Sony/Tektronix 318 manual with full schematic
| Well that 20ns clock is missing in the diagnostics menu as well.
TYPE ID is only tested at startup, I've just checked that by soldering a wire across W118 and removing it (with a switch) when I entered the trigger menu. When W118 is jumpered at startup the instrument is a 338 until next startup (or MPU reset).
The 20ns clock is no where to be seen no matter the if W118 is soldered or not.
|
--- On Wed, 3/13/13, sbirdasn wrote:
From: sbirdasn <sbirdasn@...>
Subject: [TekScopes] Re: Sony/Tektronix 318 manual with full schematic
To: TekScopes@...
Date: Wednesday, March
13, 2013, 6:32 AM
?
Comments inline...
--- In TekScopes@..., Gala Dragos wrote:
>
> I have that manual, I cannot find half of A02 board.
You're right! page <4> is missing! The doc looked pretty good to me when I first looked at it. ;)
That being said, my dead-tree version that is truly complete has the following circuits:
1) External clock input buffer with its threshold comparator/delay circuit.
2) Internal/external clock select logic.
3) Some buffers for qualifiers.
4) Threshold buffer amplifiers for the pods.
5) The signal routing to get one pod connector's differential signals to the interconnect header for the A01's differential to ECL signal w/ glitch detection circuits. (one pod is handled on A01, one pod on A02)
For the problems you're experiencing, it probably won't help much, if any.
> The full symptoms are these:- 20ns clock??disappeared;- there are 4 selectable groups in the setup screen;- each group has 16 bits available for display;- only 2 pods can be selected for input (pod A and pod B), the rest are unavailable;
By that, I think you mean that groups 3 & 4 are disabled by default, and you can only enter signals A0-7 or B0-7 into groups.
Correct?
> - all tests pass, including acq and sram;- the pods are capturing external signals properly (checked them with the available calibration output);
This would imply that upon power-up, it *does* ID itself as a 318.
> I have noticed that the instrument can be "used" without the??acquisition??board, albeit you can only browse the menus.
Not surprising, since much of the hardware is write only or limited in how the CPU can interact with it.
> Excerpt from the manual:??"The chip select latch (A04U114) is used to enable each 8-bit pair of the acquisition memory and for identifying instrument type. It is written by the MPU with the WRITE BS signal from the A03 ACQ Control board."
> I have checked that circuit for continuity of traces and they are all ok. On the schematic there is a jumper wire called W118 which in the 338 is mounted and in the 318 is not mounted, checked that as well and it is not mounted.
Since you've checked the signal connections, it sounds like a hardware failure in one or more chips.
Consider the following (I have no idea how they wrote the firmware, so I have to make some educated guesses):
The Bank Select pin used for Type ID is "wire-OR'ed" with the ACQ/Glitch Memory output data bus, which has pull-up/termination resistors to bring the bus to a known inactive state.
Since the 318 has the jumper removed, then when the ID bank bit is driven active, the signal to be read *should* be in the "inactive" state.
If one of the ACQ/Glitch SRAM's were to drive this pin to a "active" state, then the bit will be incorrectly read (there is also some status bits that are selected by the 2-1 muxes, so something could be wrong there too).
When would this happen?
Apparently, not on power-up, as it knows to be a 318 for pod count and memory to test.
But perhaps when you enter the Trigger menu and start moving the clock rate, then the firmware *might* check the hardware jumper state again, read the wrong information, and prevent selecting the highest clock rate.
This is just a guess, but it would be easy to check-
Solder a jumper wire onto the W118 pad on the latch side for probing with a scope, and check for activity by the CPU to drive it active (to read the ID TYPE). The signal will be fairly slow, as it is driven active across several instructions, and thus will be in the micro-second range, unlike the sampling circuitry. Not an ideal situation for signal integrity, but then I doubt you have a pair of extender cards handy (made of unobtanium).
I think the signals in this area are ECL, so the logic transition delta is about 0.8V between 1's and 0's, and does not go to either "ground" or V- (ECL is technically a -5.2V logic family).
Explore the operation of the analyzer, and note when the signal goes active. Try various menus, field changes, etc. to see when the CPU fiddles with this signal. You might also look at when the Bank Select Latch is clocked too.
You could check some other signals from the bank latch and the read side as sanity checks if necessary.
I can't think of any other explanation as to why you can't select 20 nS clock.
Good luck.
Sbirdasn.
|
I did the Williams probetest. Included were not the cheap no brand chinise probes but a Chinese 100 MHz Rigol probe ( from my late DS1102e) and some philips and Tekprobes. I know Rigol has a lot of fanatic fans so i won't comment, just look and draw your own conclusions. And these are probably better then the no-brand stuff.? I would not spoil money on them, i have 3 old 100 MHz Tek probes that costed me 10 euro a piece, they outperform the Rigol probes a lot. ( i think the Rigol probes are 100 MHz themselve and the Tek probes are made to use for a 100 MHz scope so the scope/probe combination still has its 3 dB point at 100 MHz.)
Fred PA4TIM
Op 13 mrt. 2013 om 04:45 heeft Don Black < donald_black@...> het volgende geschreven:
?
I've never used them but the cheap probes are available up to
several hundred MHz (250-300?) for a bit more money. Has anyone
tried them and know how good or bad they are above 100 MHz. It may
be more demanding on fast pulses rather than sine waves.
Don Black.
On 13-Mar-13 5:28 AM, Dan Rae wrote:
?
Thanks Bob. I forgot the link though in case anyone wants to take a look.
I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475?
They are quite useful but not by any means perfect for any
Tek scope that requires the read out pin which these lack.?
That said, I use them with my SC502 and the switchable ones
all the time with my counters that have a 1 meg Ohm input.?
They are only rated to 100 MHz nominally which is another
draw back for use with the 475.
Also the witches hat that came with mine will fit some of
the Tek probes.? For $15 a pair they're worth getting.
Dan
|
I bought a pair of inexpensive x10 250 MHz probes (Texas TX5125R) for my 2440 and they work fine. I verified their performance with my PG506 using a coaxial connection to the probe tip. On Wed, 13 Mar 2013 14:45:39 +1100, Don Black <donald_black@...> wrote: I've never used them but the cheap probes are available up to several
hundred MHz (250-300?) for a bit more money. Has anyone tried them and
know how good or bad they are above 100 MHz. It may be more demanding on
fast pulses rather than sine waves.
Don Black.
On 13-Mar-13 5:28 AM, Dan Rae wrote:
On 3/12/2013 11:13 AM, anson_williams@... wrote:
Thanks Bob. I forgot the link though in case anyone wants to take a look.
I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475?
They are quite useful but not by any means perfect for any Tek scope
that requires the read out pin which these lack. That said, I use
them with my SC502 and the switchable ones all the time with my
counters that have a 1 meg Ohm input. They are only rated to 100 MHz
nominally which is another draw back for use with the 475.
Also the witches hat that came with mine will fit /some /of the Tek
probes. For $15 a pair they're worth getting.
Dan
|
Re: 155-0049-02 for 465 scope
Jerry,
That would be great. Let's make it even ten bucks.
Have a great day,
Bob
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Show quoted text
--- In TekScopes@..., jerry massengale <j_massengale@...> wrote:
Bob,
I have a 7B53A with bad switches that I am scraping. I can send you the working 155-0049-02 for $5 plus shipping[$2.06?].
send me your address and it will go out this morning. paypal j_massengale@...
$7.10
Jerry Massengale
-----Original Message-----
From: Bob <b46nelson@...>
To: TekScopes <TekScopes@...>
Sent: Mon, Mar 11, 2013 7:59 pm
Subject: [TekScopes] 155-0049-02 for 465 scope
I beleive I need a 155-0049-02 chip to fix the sweep issue with my 465 scope. Anyone know the best place to locate one????
|
Re: Sony/Tektronix 318 manual with full schematic
Comments inline... --- In TekScopes@..., Gala Dragos <gala_dragos@...> wrote:
I have that manual, I cannot find half of A02 board.
You're right! page <4> is missing! The doc looked pretty good to me when I first looked at it. ;) That being said, my dead-tree version that is truly complete has the following circuits: 1) External clock input buffer with its threshold comparator/delay circuit. 2) Internal/external clock select logic. 3) Some buffers for qualifiers. 4) Threshold buffer amplifiers for the pods. 5) The signal routing to get one pod connector's differential signals to the interconnect header for the A01's differential to ECL signal w/ glitch detection circuits. (one pod is handled on A01, one pod on A02) For the problems you're experiencing, it probably won't help much, if any. The full symptoms are these:- 20ns clock??disappeared;- there are 4 selectable groups in the setup screen;- each group has 16 bits available for display;- only 2 pods can be selected for input (pod A and pod B), the rest are unavailable; By that, I think you mean that groups 3 & 4 are disabled by default, and you can only enter signals A0-7 or B0-7 into groups. Correct? - all tests pass, including acq and sram;- the pods are capturing external signals properly (checked them with the available calibration output); This would imply that upon power-up, it *does* ID itself as a 318. I have noticed that the instrument can be "used" without the??acquisition??board, albeit you can only browse the menus. Not surprising, since much of the hardware is write only or limited in how the CPU can interact with it. Excerpt from the manual:??"The chip select latch (A04U114) is used to enable each 8-bit pair of the acquisition memory and for identifying instrument type. It is written by the MPU with the WRITE BS signal from the A03 ACQ Control board." I have checked that circuit for continuity of traces and they are all ok. On the schematic there is a jumper wire called W118 which in the 338 is mounted and in the 318 is not mounted, checked that as well and it is not mounted. Since you've checked the signal connections, it sounds like a hardware failure in one or more chips. Consider the following (I have no idea how they wrote the firmware, so I have to make some educated guesses): The Bank Select pin used for Type ID is "wire-OR'ed" with the ACQ/Glitch Memory output data bus, which has pull-up/termination resistors to bring the bus to a known inactive state. Since the 318 has the jumper removed, then when the ID bank bit is driven active, the signal to be read *should* be in the "inactive" state. If one of the ACQ/Glitch SRAM's were to drive this pin to a "active" state, then the bit will be incorrectly read (there is also some status bits that are selected by the 2-1 muxes, so something could be wrong there too). When would this happen? Apparently, not on power-up, as it knows to be a 318 for pod count and memory to test. But perhaps when you enter the Trigger menu and start moving the clock rate, then the firmware *might* check the hardware jumper state again, read the wrong information, and prevent selecting the highest clock rate. This is just a guess, but it would be easy to check- Solder a jumper wire onto the W118 pad on the latch side for probing with a scope, and check for activity by the CPU to drive it active (to read the ID TYPE). The signal will be fairly slow, as it is driven active across several instructions, and thus will be in the micro-second range, unlike the sampling circuitry. Not an ideal situation for signal integrity, but then I doubt you have a pair of extender cards handy (made of unobtanium). I think the signals in this area are ECL, so the logic transition delta is about 0.8V between 1's and 0's, and does not go to either "ground" or V- (ECL is technically a -5.2V logic family). Explore the operation of the analyzer, and note when the signal goes active. Try various menus, field changes, etc. to see when the CPU fiddles with this signal. You might also look at when the Bank Select Latch is clocked too. You could check some other signals from the bank latch and the read side as sanity checks if necessary. I can't think of any other explanation as to why you can't select 20 nS clock. Good luck. Sbirdasn.
|
The cheap probes seem to be as good as the expensive ones, in my experience.? I don't give my probes daily use so they are my best option.
I also fail to see how being cheap implies poor performance.? A probe is a probe, regardless of mythology.
Bob
|
--- On Tue, 3/12/13, Don Black wrote:
From: Don Black <donald_black@...>
Subject: Re: [TekScopes] Re: Cheap Probes
To: TekScopes@...
Date: Tuesday, March 12, 2013, 8:45 PM
?
I've never used them but the cheap probes are available up to
several hundred MHz (250-300?) for a bit more money. Has anyone
tried them and know how good or bad they are above 100 MHz. It may
be more demanding on fast pulses rather than sine waves.
Don Black.
On 13-Mar-13 5:28 AM, Dan Rae wrote:
?
Thanks Bob. I forgot the link though in case anyone wants to take a look.
I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475?
They are quite useful but not by any means perfect for any
Tek scope that requires the read out pin which these lack.?
That said, I use them with my SC502 and the switchable ones
all the time with my counters that have a 1 meg Ohm input.?
They are only rated to 100 MHz nominally which is another
draw back for use with the 475.
Also the witches hat that came with mine will fit some of
the Tek probes.? For $15 a pair they're worth getting.
Dan
|
While in the military, I was responsible for repairing a computer.
We ordered a set of scope probes and got a clone of a Tektronix probe.
While looking at a 50 MHz clock on the scope, the waveform could be changed drastically by moving your hand along the probe cable.
With good probes, the placement of your hand along the lead caused no change in waveform.
If the probes serve you needs, they are good.
These probes did not server our needs and were quickly replaced with quality probes/
73
Glenn
WB4UIV
toggle quoted message
Show quoted text
At 12:54 PM 3/12/2013, you wrote: I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475? They seem to work reasonably well They pick up good traces from the calibrator and a small 555 based square wave and triangle wave generator and I also have the AVR clock kit and that works well also. But if and when I get into more advanced uses will I need better probes? And what is really the difference between these and say a P6106? Thanks for any info.
------------------------------------
Yahoo! Groups Links
|
I've never used them but the cheap probes are available up to
several hundred MHz (250-300?) for a bit more money. Has anyone
tried them and know how good or bad they are above 100 MHz. It may
be more demanding on fast pulses rather than sine waves.
Don Black.
On 13-Mar-13 5:28 AM, Dan Rae wrote:
toggle quoted message
Show quoted text
?
Thanks Bob. I forgot the link though in case anyone wants to take a look.
I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475?
They are quite useful but not by any means perfect for any
Tek scope that requires the read out pin which these lack.?
That said, I use them with my SC502 and the switchable ones
all the time with my counters that have a 1 meg Ohm input.?
They are only rated to 100 MHz nominally which is another
draw back for use with the 475.
Also the witches hat that came with mine will fit some of
the Tek probes.? For $15 a pair they're worth getting.
Dan
|
You might eventually find electrical limitations (frequency
response, reflections, ringing, etc.) but for moderate frequency
work where they are satisfactory, they are saving wear and tear on
you good probes to save them for when they are really needed. When
they eventually wear out they can be replaced for a few dollars (I
bought a pair of new Chinese probes for about $8.00 recently).
Don Black.
On 13-Mar-13 3:54 AM, anson_williams@... wrote:
toggle quoted message
Show quoted text
?
I purchased a pair of these probes for my 475 just
because I really couldn't afford anything else. My
question is will i ahve any issues with these on the 475?
They seem to work reasonably well They pick up good traces
from the calibrator and a small 555 based square wave and
triangle wave generator and I also have the AVR clock kit
and that works well also. But if and when I get into more
advanced uses will I need better probes? And what is
really the difference between these and say a P6106?
Thanks for any info.
|
Re: a note for USA residents buying from Walter at Sphere
You don't actually say what your complaint is but it obviously upset
you. 'nuff said from me about that.
However for sending money from here (Australia) internationally
Paypal is the only economical option. If I use a bank transfer or
any of the other financial systems their fees can be more than the
item cost, depending on circumstances perhaps $30.00 to send as
much. Paypal would cost about $1.00 for the same and the recipient
has the money in their account in seconds. I have no particular love
for or against Paypal but for me it works fine, plus it's an extra
firewall between my bank and the outside world, comforting if I'm
sending to Russia, China, etc. (and there are plenty of nasty people
closer to home too.
Don Black.
On 13-Mar-13 12:54 AM, n6otq wrote:
toggle quoted message
Show quoted text
?
Hi all
No matter what some of us may think, Canada still isn't
our 51st state.
Recently, Walter at Sphere made me an extremely generous
deal on a manual, and asked for either a USPS
international money order in payment, or PayPal with a
surcharge sufficient to cover PP's rapacious fees.
What I found was -- the current fee for a USPS
international money order is USD$4.50, and postage from
the states to Canada is $1.10. Walter asked for a 7%
PayPal surcharge. In my case, it would have been much
cheaper to pay that surcharge, much as I hate PayPal.
They're not my pal, friend; they're not my friend, buddy;
they're not my buddy, pal. (with apologies to "South
Park")
Your mileage may vary, especially as the dollar amount of
the transaction rises, but I suggest that you work the
numbers before you go to the post office.
Now, usually I do not mind a trip to the post office -- I
telecommute to work 99% of the time, and it's a refreshing
break to go to the PO. Most times, I meet some interesting
people there.
However, yesterday? Not quite so much. If I have a chance
to go to the PO today, I'm going to lodge a formal
complaint against one of the workers who confronted me --
I cannot say "helped" -- because he was about as useful at
actually providing my requested services as Neville
Chamberlain was at ending World War 2.
Maybe I can get him fired.
All monetary things being equal, my disgust with PayPal
was dwarfed by overweening frustration and dismay with
that one Postal Service waste of oxygen employee. He made
it truly a challenge for me to be civil to the other
dedicated postal workers who DID take care of this
situation for me.
Anyway, check prices for cross-border financial services
first. It may be that the oft-reviled evil empire of
PayPal is a better deal than USPS.
73 and have a nice day
Jim N6OTQ
|
Need 2213 HV Multiplier Fab Instructions
I have heard that there are some instructions and maybe a photo of how to fabricate an HV multiplier here somewhere. 10 minutes of searching has come up empty. Can any one point me to a procedure for building and installing a replacement HV multiplier for a 2213?
Thanks,
Phil...
|
Re: Is this Tektronix 577 CRT kaput?
Hi Richard,
I have a selection of 57X curve tracers including this model
of 577, and I would guess there is nothing wrong with that CRT.
My experience has been that curve tracers do not get used
much, so it is just the usual bad capacitors and other old age problems along
with?whatever abuse they have suffered while sitting around for 20 to 40
years, that they arrive with.
Craig's point about the actual danger in this 577 purchase
being the shipping damage, is?quite real.
Some of the larger knobs on the front of the 577 are not used
on any other model, but this one looks very good in that respect (if I'm looking
at the?same 577 on eBay).
tom jobe...
?
?
?
toggle quoted message
Show quoted text
----- Original Message -----
Sent: Tuesday, March 12, 2013 10:48
AM
Subject: RE: [TekScopes] Is this
Tektronix 577 CRT kaput?
?
It is the
split screen storage version of the 577.? First thing is that he has set
it up wrong, so all you are seeing is the flooded screen.? Second thing
is that he has selected a high voltage (1000V), so the yellow light comes on
and it inhibits scan. You can see the words to that effect underneath the
light. There are ways of fooling this interlock so you can test without the
always missing safety box.
Now the
illumination of the screen is not even, which is a little odd.? I’ve just
set mine up the same way, and my screen is fairly evenly flooded with no
structure (other than the odd screen burn at the centre and bottom
right).
I’d say there
was more risk of damage on its way from the States (which is where the seller
is).? He’s going to have to pack it exceptionally well for it to be
anything better than scrap when it gets to the UK.
Craig
From:
TekScopes@... [mailto:TekScopes@...] On Behalf Of
ehrico
Sent: 12 March 2013 17:13
To:
TekScopes@...
Subject: [TekScopes] Is this Tektronix 577
CRT kaput?
Hello everyone,
a seller on ebay is selling a
tek 577 with a fault, he/she? is not fully 100% sure it is the crt. I
can't afford a working one but am willing to restore one that is
restorable(with undead crt)
So I have provided to 2 links to pics in my imgur account. The
second one they must have turned the intensity and or brightness full
up?
? and
Is it a CRT problem or
a problem with deflection circuitry etc...?
Anyway my name is Richard
and I have been lusting after a Tek 577/6 curve tracer for a while. If I lived
in the USA I would probably have one by now, but I live the UK
Thanks
for any help.
Richard
|
Re: Could please any one give a clue about this nice pulsed line generator??
The Generator arrive today from USA to my Argentine door!!! .
Unfortunately not work fine.
Rt=1,67nS (instead 300pS)
Width pulse= 5,84nS (wave exponential decay instead rectangular pulse)
Max out= 3,5V (instead 25V)
Rep Rate=15Mhz (instead 50 or 100Khz)
The ratio of different att step, seems to be good.
Probability arise that my previous intuition about bipolar avalanche transistor burned out come truth.
Perhaps the out pulse I see is not else than the trigger pulse passing trough a short avalanche transistor.
Any way, this nice generator will be fixed (tomorow)....all kind of help & advice will be welcome.
Gabriel.
toggle quoted message
Show quoted text
--- In TekScopes@..., "iglesia_cristiana_arpas_eternas" <iglesia_cristiana_arpas_eternas@...> wrote:
Here the link to this almost new pulsed generator, at first glance is a
transmission line pulser with 300ps ..but no model or number at all.
I just brought it with the hope work right...but a good service manual
will be very appreciated and gratefully.
Link to Pulse Gen.
<;
2112187?autorefresh=true&pt=LH_DefaultDomain_0&hash=item3a7e99ce3b&nma=t\
rue&si=w4%252BkkAkTYIq9sTkPYLC8H98HEpU%253D&orig_cvip=true&rt=nc&_trksid\
=p2047675.l2557>
Regards Gabriel.
|
Tek has a Primer about probes on their web site. I believe it's "ABC's of Probes" or "XYZ's of Probes" There's probably a copy in the Yahoo archives too.
? HankC, Boston
WA1HOS
|
Re: Is this Tektronix 577 CRT kaput?
I believe that display section is the same as the storage section of a 5103/D11. I have one of those & mine adjusted to a uniform flood. I'd be willing to bet the CRT is OK & can be adjusted per the manual ? HankC, Boston
WA1HOS
|
I have some similar 100 MHz x1/x10 switchable probes for my various 100 MHz oscilloscopes and they work and test fine. I have some faster 250 MHz x10 probes for my 2440 which is 300 MHz and they test fine as well. Most of my Tektronix probes have failed over the years from cable wear. If you can dig up a flat top pulse generator like a PG506, a probe tip coaxial adapter, and maybe a feedthrough terminator, then you can verify the probe's performance. On Tue, 12 Mar 2013 18:13:54 -0000, "anson_williams@..." <tractormananson@...> wrote: Thanks Bob. I forgot the link though in case anyone wants to take a look. They do have adjustments at the connector Which one of the two I purchased did need a small adjustment and they micro clip lead unscrews for the traditional point, so a basic probe. I don't know how to test whether or not it functions up to spec but so far I have good clean traces on everything I've test.
--- In TekScopes@..., Bob Albert <bob91343@...> wrote:
The main differences among probes are durability and of course you pay for the brand name.?? If it works and the specs are good, you are in great shape.
Bob
--- On Tue, 3/12/13, anson_williams@... <tractormananson@...> wrote:
From: anson_williams@... <tractormananson@...>
Subject: [TekScopes] Cheap Probes
To: TekScopes@...
Date: Tuesday, March 12, 2013, 9:54 AM
I purchased a pair of these probes for my 475 just because I really couldn't afford anything else. My question is will i ahve any issues with these on the 475? They seem to work reasonably well They pick up good traces from the calibrator and a small 555 based square wave and triangle wave generator and I also have the AVR clock kit and that works well also. But if and when I get into more advanced uses will I need better probes? And what is really the difference between these and say a P6106? Thanks for any info.
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Re: TM500 plugin..why&what this like "banana plug" screwed in the rear end..?
Good to know. Thanks. That means "leave it in".
DaveD
On 3/12/2013 2:48 PM, Dennis Tillman
wrote:
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?
The screw "plug" grounds the metal frame of the plugin to
the chassis of the
TM500 Power Module as well as aligning it.
-----Original Message-----
From: TekScopes@...
[mailto:TekScopes@...]
On Behalf
Of iglesia_cristiana_arpas_eternas
Sent: Tuesday, March 12, 2013 11:44 AM
To: TekScopes@...
Subject: [TekScopes] Re: TM500 plugin..why&what this
like "banana plug"
screwed in the rear end..?
Hi Jerry ...thanks for your answer...
.The TM501 mainframe power transistor (Power supply) not
was moved, Since
the pin alignment interfere with the screw body I just
unscrew , and invert
nut/screw position, the screw head up, nut bellow.
Effective and simple solution.
Gabriel.
--- In TekScopes@...,
jerry massengale wrote:
>
> Hi Gabriel,
>
> The pin povides a bit of insurance against
misalignment of the connector.
I would leave them when possible. I suspect the transistor
mentioned need to
be moved.
>
>
>
>
>
> Jerry Massengale
>
>
>
>
>
>
> -----Original Message-----
> From: iglesia_cristiana_arpas_eternas
>
> To: TekScopes <TekScopes@...>
> Sent: Tue, Mar 12, 2013 12:35 pm
> Subject: [TekScopes] TM500 plugin..why&what this
like "banana plug"
screwed in the rear end..?
>
>
>
>
>
> TM500 plugin..why&what this like "banana pug"
screwed in the rear end..?
> I have several TM500 plugin and different mainframe
501,503,504, and this
"banana" come with some and not in other,also bring
attachment problem in
TM501, since they touch the power transistor, I just
invert screw/nut on
power transistor mainframe and voala..but I would like to
know if is safe
directly unscrew this "banana".
> Pic..see the right botoom.
> Regards Gabriel.
>
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David Hess