Date   

7623A Manual & problem

obbm_1939 <tlynne@linkny.com> <tlynne@...>
 

I could use a little help. I have bought a rackmount 7623A with two
7B18
and one 7B50 plugins. Works pretty good, with some problem with the
center
slot.

The readouts on the screen are positioned vertically so the top
readouts are mostly off the screen. Do you know if there is a postion
control and/or a focus for these readout numbers? Also I could sure
use a
manual for this, especially a downloadable one.
Thanks for any help.


For DAN BOOT

kevin_ka0i <kj558@yahoo.com>
 

Sorry to clutter the list with this, but I'm trying to get an email
message to a list memeber and it keeps bouncing...

Dan - My address is...

Kevin Hunter
8504 W. Farm Road 76
Willard, MO 65781

I have tried to send this twice via email. It has been returned both
times.


Re: Software package TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE

Denis Cobley <denis.cobley@...>
 

Profile software was part of a product called the PDR100,20 and so on.
It was/is a video disk recording system for use in TV studio's.
I think it would but totally useless without the correct hardware to run it
on (even if you had a use for it).
The product is now part of Grass Valley Group a Tek spinoff.
Regards
Denis

----- Original Message -----
From: "Miroslav Pokorni" <mpokorni2000@yahoo.com>
To: <TekScopes@yahoogroups.com>
Sent: Thursday, February 20, 2003 10:36 AM
Subject: [TekScopes] Software package TEKTRONIX PROFILE PDR 100 or PDR 200
SOFTWARE


Does anyone know what 'TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE' is
and
what does it do. It has been offered on e bay number of times, looks like
guy is growing it in his backyard. One of current auctions is item #
3402571828. The software is on a CD, what indicates newer issue. There is
a
picture of manual, open to page of content, but I am not able to read it.

Would someone, please, help.

Regards

Miroslav Pokorni





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old tek crts

arthurok_2000 <arthurok_2000@yahoo.com> <arthurok_2000@...>
 

both crts are beyond rejuvinating???


Tek-"CRT'S needed for TEK Scopes 310 & 541A

polarbear82002 <W7WGB@arrl.net> <W7WGB@...>
 

Need CRT's for a TEK SCOPE 310 and a 541A, anyone know where I can
find new or good used??
Wally


T912's

sittners@...
 

Well I did it again and my wife's mad. I was stepping around crates of junk at the local surplus junk store and came across a pair of T912's and couldn't resist when I was told that they didn't work. Does anyone know where I might get a schematic on these--pdf, cd rom etc?

Phil


Sorry! Vanity. Can't find his e-mail address

eric39392000 <eric39392000@yahoo.com> <eric39392000@...>
 

Thank you for the CD, Jim!
Doug


485 Questions

w1ksz <w1ksz@tiac.net> <w1ksz@...>
 

I picked up a Tek 485 at Marlboro Saturday. It wasn't working
so I bought it "as-is". I borrowed the Service Manual.
I got a trace now and it seems to work, mostly, except for a
couple of prpblems.
The Horizontal trace is only 10 cm wide, is that normal ?
Also, as a few minutes go by the trace moves to the right and
the Horizontal Position cannot center it. Even the Horizontal
position adjustment inside the scope does not offer enough
correction.
The Power Supply voltages (on the P. S. Board) all measure OK.
Any ideas on what to look for ?

Thanks, Dick, W1KSZ


Tek 7934 info

croatia7104 <hteurep@hteurep.hr> <hteurep@...>
 

Hi guys,

is there anybody experienced with TEK 7934? Is its storage screen
more sensitive than ordinary P39 phosphor (i.e. is it more difficult
to find good screen?). If I decide to buy such instrument, is there
something that I should be specialy carefull about? Which serial
numbers to look for?

Thanks for help.

Best regards,
Josip, Croatia


Re: Software package TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE

Richard L. Hess <lists@...>
 

A little bit of related history:

Both Tektronix and Hewlett Packard got into making video servers early on. Philips had something called a "Media Pool." HP had "MediaStream." Tek had "ProFile."

BTS/Philips killed Media Pool before the sale to Thomson. Thomson now has the Tek/GVG ProFile.

The HP Mediastream is now owned by Pinnacle. I wonder if I'll be getting a Pinnacle "movie" card in my new Dell????

Cheers,

Richard


Re: Software package TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE

Richard L. Hess <lists@...>
 

At 08:15 AM 2/21/2003 +0000, Denis Cobley wrote:

The product is now part of Grass Valley Group a Tek spinoff.
Just to clarify:

The Grass Valley Group existed as an independent company for many years. I was first exposed to their products--and visited their factory--in 1974. The company, I believe, was originally founded by Doc Herr. I don't have an exact founding date.

GVG was purchased many years later by Tektronix. I would guess in the mid-late 1980s.

Tektronix, as I understand it, sold it back to the employees in the very late 1990s.

It has now for the past two or so years, been part of the Thomson group.

At least this is how I understand it.

While I'm a real fan of Tektronix, I'm afraid crediting them with founding GVG is not possible. In fact, I'm not even sure that their ownership was really good for GVG, long term.

The Profile, itself WAS a Tektronix product IIRC, and it was sold with the GVG line where it fit. GVG makes video switchers (both production and routing) and terminal gear (converters, distribution amplifiers, etc.) as well as the Profile. They also provide some editing software.

Cheers,

Richard


Re: Software package TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE

Richard L. Hess <lists@...>
 

The PDR series are the video servers which are Tek/Grass Valley products called ProFiles.

The software would be rather useless without the specialized box.
http://www.thomsongrassvalley.com/products/servers/family_pdr/

Yes, Grass Valley Group is now part of Thomson!!!! As is the old Philips Broadcast.

There is a ProFile XP which is a newer product.

Cheers,

Richard


Software package TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE

Miroslav Pokorni
 

Does anyone know what 'TEKTRONIX PROFILE PDR 100 or PDR 200 SOFTWARE' is and
what does it do. It has been offered on e bay number of times, looks like
guy is growing it in his backyard. One of current auctions is item #
3402571828. The software is on a CD, what indicates newer issue. There is a
picture of manual, open to page of content, but I am not able to read it.

Would someone, please, help.

Regards

Miroslav Pokorni


Re: 12th power is correct on bulb life

Miroslav Pokorni
 

The power of three is close to light output re-rating, the actual number is
3.5. As for lifetime re-rating I did not see any restriction on the ratio of
voltages. Bear in mind that those numbers are approximate, you certainly
could not measure elapsed time by that method.

Mouser is pretty much a low life cataloger, parroting other sources and
frequently those copies are not checked for accurate re-typing. I consider a
bulb manufacturer much more trustworthy source of such information, because
it is their livelihood that is on the line, though some of them have slid
down the line of quality. For example, GE bulbs of any kind are no better
than third word products; for that matter, they are made in a third word
country, Brazil. I certainly would not trust data offered by GE's lamp
division. One reputable manufacturer is Chicago Miniature, they have been
around for long time and have good reputation for quality. There is a very
good application note in their data book; web site is: http://www.chml.com/

Regards

Miroslav Pokorni

----- Original Message -----
From: <arthurok_2000@yahoo.com>
To: <TekScopes@yahoogroups.com>
Sent: Wednesday, February 19, 2003 5:54 PM
Subject: [TekScopes] 12th power is correct on bulb life


pardon me ; the intensity delta change is about the cube root
"exp-3.3" radio shack was selling little grain of wheat
bulbs im not sure if they still do that are used in cheap
consumer grade stuff im not sure that the -12th power
formula is correct for a 2.4 voltage ratio change
but i did err in thinking it was a cube root of ratio
change in life expectancy try this source also www.mouser.com



Re: tek 1501, 1502 and 1503 TDR's

Miroslav Pokorni
 

Well, that is novel approach to collecting. Most of us buy hardware and then
look for manual and you put that thing upside down.

Regards

Miroslav Pokorni

----- Original Message -----
From: <macgregor@chestnuttech.com>
To: <TekScopes@yahoogroups.com>
Sent: Wednesday, February 19, 2003 5:46 PM
Subject: [TekScopes] tek 1501, 1502 and 1503 TDR's


hello all,

i picked up a set of manuals on ebay recently that pertained to the 1503
and 1501, which i kind of expected to be like the 1502.

turns out that the 1501 is one of a few instruments tek made that used a
separate X-Y scope as a display device, and it is like the 1401 spectrum
analyzer in that regard. it is sized approximately for the 323 scope and
even has an accessory that bolts the two together as a battery powered
portable TDR system. i guess it went out of fashion in the 1970's, and i am
betting that it did not sell in large quantities.

just wondering if anyone in the group knows the box, and has ever seen one
for sale anywhere. it is totally cool. has step and half-sine pulses and
multiple output impedances. neat thing is that it would be useful with a
modern digitizing scope for documentation, too. and even though none of
the old tek TDRs used hybrids, this thing is completely capable for being
user maintained.

anyway, as i said...wondering about general availability and/or value of
such an item... any reports of sightings of one would be greatly
appreciated.

forrest macgregor




12th power is correct on bulb life

arthurok_2000 <arthurok_2000@yahoo.com> <arthurok_2000@...>
 

pardon me ; the intensity delta change is about the cube root
"exp-3.3" radio shack was selling little grain of wheat
bulbs im not sure if they still do that are used in cheap
consumer grade stuff im not sure that the -12th power
formula is correct for a 2.4 voltage ratio change
but i did err in thinking it was a cube root of ratio
change in life expectancy try this source also www.mouser.com


tek 1501, 1502 and 1503 TDR's

macgregor54 <macgregor@chestnuttech.com> <macgregor@...>
 

hello all,

i picked up a set of manuals on ebay recently that pertained to the 1503 and 1501, which i kind of expected to be like the 1502.

turns out that the 1501 is one of a few instruments tek made that used a separate X-Y scope as a display device, and it is like the 1401 spectrum analyzer in that regard. it is sized approximately for the 323 scope and even has an accessory that bolts the two together as a battery powered portable TDR system. i guess it went out of fashion in the 1970's, and i am betting that it did not sell in large quantities.

just wondering if anyone in the group knows the box, and has ever seen one for sale anywhere. it is totally cool. has step and half-sine pulses and multiple output impedances. neat thing is that it would be useful with a modern digitizing scope for documentation, too. and even though none of the old tek TDRs used hybrids, this thing is completely capable for being user maintained.

anyway, as i said...wondering about general availability and/or value of such an item... any reports of sightings of one would be greatly appreciated.

forrest macgregor


Re: subminiture light bulbs

Miroslav Pokorni
 

The empirical data for tungsten light bulbs show that life is extended by a
number equal to 12th power of rated to applied voltage ratio, what in case
of 12 V rated lamp run at 5 V would be around 36 000 times. Considering that
flash light bulbs are run for high light output and a life of just few
hours, the ratio is smaller than 36 000, but still quite large.

Regards

Miroslav Pokorni

----- Original Message -----
From: <arthurok_2000@yahoo.com>
To: <TekScopes@yahoogroups.com>
Sent: Wednesday, February 19, 2003 12:23 PM
Subject: [TekScopes] subminiture light bulbs


radio shack might still sell some wire lead bulbs that
might work.
Using a 12vlt bulb running at 5 vlts should last a long time
"most consumer electronics bulbs arent rated for 50000 hours
life running a 12 vlt radioshack special at 5 vlts will
probably increase its life 10 fold



Re: Tek 465 repair hints, svc manual? (fix story)

Richard L. Hess <lists@...>
 

Ok, off-topic, but fun.

Test fixture with seven cards fresh out of card-stuffing/wave solder.

Owner of firm brings the bankers by and explains my "cool" automated test setup.

I'm on a deadline, so I start testing the new cards.

Power up the test frame, smoke all over the place! All seven cards had both rails' tantalums in backwards.

Owner and bankers exit very promptly.

I take the boards, still smoking, back to the module fabrication group. The boards were not the only source of smoke. I think some was coming out of my ears.

Cheers,

Richard


Re: Need Transistor for 465M

Miroslav Pokorni
 

I will start you on that, Craig, though. But do not feel bad, the issue is
equally confusing to Motorola employees, too. Some years ago, right around
time when that 'shrewd' business move of spin-offs was perpetrated by
everyone and his dog in electronic industry, I was at a seminar with few
people from Motorola. I was searching for a PLL part and a lady from the
group worked for Frequency Control department. She could not tell whether a
particular part was handed over to ON or retained by Motorola. We ended up
by having the lady check and call me when she got back to her office.

There were similar things with Infinion, but did not impact me too much,
because DRAM was the only Siemens' product that I was involved with. And,
similarly, employees were in dark at Siemens, too. I was seating on JEDEC's
DRAM committee and talked with Siemens' guy. He did not have any idea which
part of former Siemens semiconductor division was transferred to the
Inifinion and which one was sold out or shut down.

Regards

Miroslav Pokorni

----- Original Message -----
From: "Craig Sawyers" <c.sawyers@tech-enterprise.com>
To: "TekScopes" <TekScopes@yahoogroups.com>
Sent: Wednesday, February 19, 2003 1:06 PM
Subject: RE: [TekScopes] Need Transistor for 465M


The generic name for a 151-0426-02 is D44H11
Current part from ONSemi (56c each) (Motorola as was, before confusing
name
change. Don't start me on that beef!)

Craig

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