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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
I don’t have hard knowledge of that but the big deal about Trinitron wasn't the mask. It was the fact that there was only one electron gun and some pretty intricate electronic stuff done to emulate
I don’t have hard knowledge of that but the big deal about Trinitron wasn't the mask. It was the fact that there was only one electron gun and some pretty intricate electronic stuff done to emulate
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By
Stephen Hanselman
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#173345
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Replacing cable on P6075A probe
I have a P6075A that appears to have a break in the middle of the coax cable, and I also have a replacement cable assembly.
How difficult is the process of replacing the cable on one of these
I have a P6075A that appears to have a break in the middle of the coax cable, and I also have a replacement cable assembly.
How difficult is the process of replacing the cable on one of these
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By
Jeff Dutky
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#173344
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
I may be misremembering that. I recall looking at a color display and seeing the dots but that may not have been my Trinitron. Sorry for the confusion.
Thanks,
Barry - N4BUQ
I may be misremembering that. I recall looking at a color display and seeing the dots but that may not have been my Trinitron. Sorry for the confusion.
Thanks,
Barry - N4BUQ
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By
n4buq
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#173343
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
The trinitron works in much the same way as the shadow mask
CRT's, with their triangular gun orientation, that GE and others
developed.
The major difference is the trinitron uses a common gun, with
The trinitron works in much the same way as the shadow mask
CRT's, with their triangular gun orientation, that GE and others
developed.
The major difference is the trinitron uses a common gun, with
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By
Chuck Harris
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#173342
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
I'm a bit confused about the Trinitron having "dots", the Trinitron relies on stripes and the mask is an aperture grille.
I'm a bit confused about the Trinitron having "dots", the Trinitron relies on stripes and the mask is an aperture grille.
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By
snapdiode
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#173341
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
The three beams are dynamically and statically aligned via a set of magnets and electromagnets arranged around the neck of the tube, in addition to the yoke coils that deflect the three beams
The three beams are dynamically and statically aligned via a set of magnets and electromagnets arranged around the neck of the tube, in addition to the yoke coils that deflect the three beams
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By
Dave Voorhis
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#173340
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
OK, I have a _very_ limited knowledge of colour CRTs, but I think the "magic" is called a "shadow-mask". The three electron guns are located in slightly different places ate the "gun" end of the tube
OK, I have a _very_ limited knowledge of colour CRTs, but I think the "magic" is called a "shadow-mask". The three electron guns are located in slightly different places ate the "gun" end of the tube
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By
Colin Herbert
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#173339
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Re: Tek 577 D1 storage adjustment questions.
I have a 577 D1 which is rather similar to your dimmer tube. It originally had an obviously failing CRT — dim to barely visible in non-store mode and double-peaking — but storage mode worked
I have a 577 D1 which is rather similar to your dimmer tube. It originally had an obviously failing CRT — dim to barely visible in non-store mode and double-peaking — but storage mode worked
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By
Dave Voorhis
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#173338
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
Hi Tom,
My question is probably quite simple but, like I said, I'm not finding a good answer.
As I understand it (and from personal observation when I had a Trinitron TV and I'm primarily wondering
Hi Tom,
My question is probably quite simple but, like I said, I'm not finding a good answer.
As I understand it (and from personal observation when I had a Trinitron TV and I'm primarily wondering
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By
n4buq
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#173337
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Re: Q122/222 Jfet J300 subs for 2215A scope ?
I dont know if this helps, but I have a small stash of metal can J310 type.Jeff Kruth In a message dated 11/16/2020 9:35:56 AM Eastern Standard Time, charlesterrebonne@... writes:
thanks to
I dont know if this helps, but I have a small stash of metal can J310 type.Jeff Kruth In a message dated 11/16/2020 9:35:56 AM Eastern Standard Time, charlesterrebonne@... writes:
thanks to
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By
Jeff Kruth
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#173336
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Re: Q122/222 Jfet J300 subs for 2215A scope ?
Instead of sticking in a socket, just measure IDSS first. I posted the current range that will work.
You may still have a problem with the bias circuit. I've never run into a 22xx scope that was
Instead of sticking in a socket, just measure IDSS first. I posted the current range that will work.
You may still have a problem with the bias circuit. I've never run into a 22xx scope that was
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By
Tom Lee
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#173335
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
Hi Barry,
Pete's book mainly covers electrostatically deflected crts. Except for some very early models, TVs used magnetically deflected crts (to allow large screens without absurd set depths). The
Hi Barry,
Pete's book mainly covers electrostatically deflected crts. Except for some very early models, TVs used magnetically deflected crts (to allow large screens without absurd set depths). The
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By
Tom Lee
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#173334
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Tek 577 D1 storage adjustment questions.
I am working on some 577’s D1 storage curve tracers. I am trying to get a 178 working. So I need the storage tubes up and running. I do not have much experience with storage tubes hence the noob
I am working on some 577’s D1 storage curve tracers. I am trying to get a 178 working. So I need the storage tubes up and running. I do not have much experience with storage tubes hence the noob
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By
Eric
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#173333
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Re: 577 D1 IV curve question
Yes, I am reffering to the kink at the left side of the trace, the IV curve appears to be pushed up higher on the screen than normal
Yes, I am reffering to the kink at the left side of the trace, the IV curve appears to be pushed up higher on the screen than normal
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By
DW
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#173332
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Re: 577 D1 IV curve question
Thanks for the replies
Refer to this link below
https://groups.io/g/TekScopes/photo/255355/1?p=Created,,,20,2,0,0
The offset knob is set to 0 and the ZERO and AID switches are IN. I pushed them in
Thanks for the replies
Refer to this link below
https://groups.io/g/TekScopes/photo/255355/1?p=Created,,,20,2,0,0
The offset knob is set to 0 and the ZERO and AID switches are IN. I pushed them in
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By
DW
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#173331
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Re: 577 D1 IV curve question
Dennis beat me to it. Are you possibly referring to that little kink near the left side of the trace?
--
Michael Lynch
Dardanelle, AR
Dennis beat me to it. Are you possibly referring to that little kink near the left side of the trace?
--
Michael Lynch
Dardanelle, AR
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By
Michael W. Lynch
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#173330
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Re: Special Offer from Peter Keller to TekScopes Members: The Cathode Ray Tube, Technology, History, and Applications"
It has about 100 pages on TV type CRT's.
CONTENTS
Cathode-Ray Tube Fundamentals
A Laboratory Curiosity
RADAR Indicator Cathode-Ray Tubes
Oscilloscope Cathode-Ray Tubes
Monochrome Television Picture
It has about 100 pages on TV type CRT's.
CONTENTS
Cathode-Ray Tube Fundamentals
A Laboratory Curiosity
RADAR Indicator Cathode-Ray Tubes
Oscilloscope Cathode-Ray Tubes
Monochrome Television Picture
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By
Chuck Harris
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#173329
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Re: 577 D1 IV curve question
Hi DW,
It would help if you said what you thought was odd about the curves so we knew what we were looking for.
There is nothing wrong at all as far as I can tell other than the base steps are offset.
Hi DW,
It would help if you said what you thought was odd about the curves so we knew what we were looking for.
There is nothing wrong at all as far as I can tell other than the base steps are offset.
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By
Dennis Tillman W7pF
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#173328
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Re: Peter Keller CRT book
Hi Simon,
Yes, I got your info and added you to the list.
I will keep everyone posted via TekScopes on what comes next once the orders stop, Peter runs out of books, or I stop accepting orders in
Hi Simon,
Yes, I got your info and added you to the list.
I will keep everyone posted via TekScopes on what comes next once the orders stop, Peter runs out of books, or I stop accepting orders in
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By
Dennis Tillman W7pF
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#173327
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577 D1 IV curve question
Hello, I have a 577 D1 serial B030223 that appears to have developed a slight problem with displaying an IV curve
https://groups.io/g/TekScopes/photo/255355/2?p=Created,,,20,2,0,0
If you click on
Hello, I have a 577 D1 serial B030223 that appears to have developed a slight problem with displaying an IV curve
https://groups.io/g/TekScopes/photo/255355/2?p=Created,,,20,2,0,0
If you click on
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By
DW
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#173326
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