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Re: TDS2000 brightness control
I read the manual a little closer. The brightness command only works on the TPS2000, not TDS2000. I guess I am out of luck.
Tom
I read the manual a little closer. The brightness command only works on the TPS2000, not TDS2000. I guess I am out of luck.
Tom
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By
Tom B
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#164569
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Re: Modifications to 577 Curve Tracer Main Power Supply
Hi Gary,
Which parts on which schematics are shown in shaded text?
Dennis Tillman W7pF
TekScopes Moderator
Hi Gary,
Which parts on which schematics are shown in shaded text?
Dennis Tillman W7pF
TekScopes Moderator
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By
Dennis Tillman W7pF
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#164568
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Re: Modifications to 577 Curve Tracer Main Power Supply
Hi Gary,
I assume that you're talking about the main power supply's + and - 30 V supplies. You may not like the circuits but a few things about your unit I consider a given:
- It has worked at some
Hi Gary,
I assume that you're talking about the main power supply's + and - 30 V supplies. You may not like the circuits but a few things about your unit I consider a given:
- It has worked at some
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By
Raymond Domp Frank
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#164567
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Re: Modifications to 577 Curve Tracer Main Power Supply
This power supply does not start up correctly. The output is set at 7
Volts both plus and minus. The variable adjustment controls have no
effect. The schematic shows several components in shaded
This power supply does not start up correctly. The output is set at 7
Volts both plus and minus. The variable adjustment controls have no
effect. The schematic shows several components in shaded
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By
Gary Robert Bosworth
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#164566
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Re: Repairing my Tektronix 454 oscilloscope need some advice (NOW ALIVE !!)
Albert,
Yesterday I receive from our well known friends in Greece the HV capacitor (C1460 - 500pF 20kV) suppose to be faulty. Today I install it and my 454 in now alive after 25 years sited on a shelf
Albert,
Yesterday I receive from our well known friends in Greece the HV capacitor (C1460 - 500pF 20kV) suppose to be faulty. Today I install it and my 454 in now alive after 25 years sited on a shelf
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By
Victor
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#164565
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Tek 7704A + Plugins
Hi,
***S/E Wisconsin Local Pickup Only***
This is a club donation, price is right - close to FREE.
TEK 7704A - Nice bright trace – condition fair/rough
7A18 - Busted trigger knob – works
7A22 -
Hi,
***S/E Wisconsin Local Pickup Only***
This is a club donation, price is right - close to FREE.
TEK 7704A - Nice bright trace – condition fair/rough
7A18 - Busted trigger knob – works
7A22 -
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By
David Garnier
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#164564
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Re: Want to buy 547 scope HV transformer
Hi Queen Nanu,
You are about 40 years too late if you want to buy it from Tektronix.
Is your problem with the 547 that the HV fails after being powered up for a short time, like 10 minutes?
If so,
Hi Queen Nanu,
You are about 40 years too late if you want to buy it from Tektronix.
Is your problem with the 547 that the HV fails after being powered up for a short time, like 10 minutes?
If so,
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By
Ernesto
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#164563
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Re: Modifications to 577 Curve Tracer Main Power Supply
Hi Gary,
"Gary Robert Bosworth" <grbosworth@...> wrote:
I also have a 577 - and it has always worked flawlessly. What kind of problems
are you having?
Cheers,
Lyle
>
>
--
73
Hi Gary,
"Gary Robert Bosworth" <grbosworth@...> wrote:
I also have a 577 - and it has always worked flawlessly. What kind of problems
are you having?
Cheers,
Lyle
>
>
--
73
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By
Lyle Bickley
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#164562
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Re: Modifications to 577 Curve Tracer Main Power Supply
Really?
What’s bad about it?
The power supply in my 577 seems to be powering it just fine, and has apparently been doing so since it was made.
Really?
What’s bad about it?
The power supply in my 577 seems to be powering it just fine, and has apparently been doing so since it was made.
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By
Dave Voorhis
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#164561
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Re: Modifications to 577 Curve Tracer Main Power Supply
I have a 577. I haven't had to repair that part yet. What bad about it?
I have a 577. I haven't had to repair that part yet. What bad about it?
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By
Rick
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#164560
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TDS2000 brightness control
Hello All,
I picked up some really cheap ($3.95 at Electronics Goldmine) displays that work in the TDS2000. The problem with it is that is looks like the backlight is too bright. The only way
Hello All,
I picked up some really cheap ($3.95 at Electronics Goldmine) displays that work in the TDS2000. The problem with it is that is looks like the backlight is too bright. The only way
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By
Tom B
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#164559
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WTB: 067-0525-00
Wanted: 067-0525-00, 067-0525-01 or 067-0525-02
Hi does anyone have any spare of these BNC T cables (must be better that
just BNC T and two short cables).
Ideally in Europe as postage from USA has
Wanted: 067-0525-00, 067-0525-01 or 067-0525-02
Hi does anyone have any spare of these BNC T cables (must be better that
just BNC T and two short cables).
Ideally in Europe as postage from USA has
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By
David C. Partridge
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#164558
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Re: For sale in Spain, my TDS540B
Hi all,
a quick update:
I added pictures to the album with more information on this scope.
As you can see in the pictures, there is a small scratch on the front where someone before me removed a
Hi all,
a quick update:
I added pictures to the album with more information on this scope.
As you can see in the pictures, there is a small scratch on the front where someone before me removed a
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By
satbeginner
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#164557
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Re: TDS3000B series
All that I know - I was hoping there might be something like a CLIP or similar floating around.
D.
All that I know - I was hoping there might be something like a CLIP or similar floating around.
D.
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By
David C. Partridge
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#164556
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Re: 555 Attributes, facets, benefits and General Discussion
Hmm 555. Interesting topic. The scope that was the last gasp for tube technology. The top of the oscilloscope food chain. The end of an era for sure. I have worked on and with the 555 since 1966. As
Hmm 555. Interesting topic. The scope that was the last gasp for tube technology. The top of the oscilloscope food chain. The end of an era for sure. I have worked on and with the 555 since 1966. As
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By
John Williams
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#164555
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Sweep Problem 475A
Seeking suggestions on trouble shooting.
Main Sweep (A) will not trigger.
Did the procedure found in the SM, page 4-16, maintenance section
Section 2
Removed Q572 and checked dc collector voltage
Seeking suggestions on trouble shooting.
Main Sweep (A) will not trigger.
Did the procedure found in the SM, page 4-16, maintenance section
Section 2
Removed Q572 and checked dc collector voltage
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By
Keith Erickson
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#164554
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Re: 7L5 dot frequency reset bug - any clues or a fix?
Does anyone have a datasheet for 7L5 U830 on Diagram 8 (PN 156-0117-00)?
I have always suspected a timing race of some sort between the sequence and rate of turn-on of the 7854 power supplies and the
Does anyone have a datasheet for 7L5 U830 on Diagram 8 (PN 156-0117-00)?
I have always suspected a timing race of some sort between the sequence and rate of turn-on of the 7854 power supplies and the
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By
Cliff Carrie
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#164553
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Re: TDS3000B series
there is no other
the type of old fashioned service manual that you are looking for, Tektronix stopped making them
25-30 years ago. you cannot find that type of service manual for any tek equipment in
there is no other
the type of old fashioned service manual that you are looking for, Tektronix stopped making them
25-30 years ago. you cannot find that type of service manual for any tek equipment in
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By
amirb
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#164552
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Re: Switch retainers for 7000 series plug ins
I've just returned to this, I have managed to secure the front of the switch using a tiny self tapper, but this doesn't work at the back because the actuating shaft of the switch protrudes too far and
I've just returned to this, I have managed to secure the front of the switch using a tiny self tapper, but this doesn't work at the back because the actuating shaft of the switch protrudes too far and
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By
Martin Whybrow
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#164551
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Re: 547 scope HV transformer problem. One practical solution.
I once had a student, who said "oh look, old technology".
I'd brought in a 7704A with a 7CT1N for a demonstration of transistor curves.
He can't fix the new stuff.
I can fix the old stuff
He can't
I once had a student, who said "oh look, old technology".
I'd brought in a 7704A with a 7CT1N for a demonstration of transistor curves.
He can't fix the new stuff.
I can fix the old stuff
He can't
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By
Harvey White
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#164550
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