|
Re: New member and owner of a dead 2225
I have run across at least 4 different files but I think they all
originate from a single scan.
I have run across at least 4 different files but I think they all
originate from a single scan.
|
By
David Hess
·
#141802
·
|
|
Re: New member and owner of a Ten 465
Triggering has no meaning in X-Y mode except in that the trigger
source and trigger coupling affect the X input.
The vertical delay line and to a lesser extent low horizontal
bandwidth limits X-Y
Triggering has no meaning in X-Y mode except in that the trigger
source and trigger coupling affect the X input.
The vertical delay line and to a lesser extent low horizontal
bandwidth limits X-Y
|
By
David Hess
·
#141801
·
|
|
Re: New member and owner of a Ten 465
Hello Peter,
The manual (for S/N B250000-up) specifies the X-Y phase angle typically less than 3 degrees up to 50 kHz. That would be very well visible, ellipse opening (hor. or vert.) I think about
Hello Peter,
The manual (for S/N B250000-up) specifies the X-Y phase angle typically less than 3 degrees up to 50 kHz. That would be very well visible, ellipse opening (hor. or vert.) I think about
|
By
Albert Otten
·
#141800
·
|
|
Re: New member and owner of a dead 2225
It is just a very different design with much less stress on the
individual parts. The price for this is having to include a large 60
Hz power transformer. The 2225 series has also not aged quite
It is just a very different design with much less stress on the
individual parts. The price for this is having to include a large 60
Hz power transformer. The 2225 series has also not aged quite
|
By
David Hess
·
#141799
·
|
|
Re: New member and owner of a dead 2225
Unless they are used for timing like in a soft start circuit, the
values are not critical. Larger values are better up to a point.
For local bulk decoupling capacitors, values are usually
Unless they are used for timing like in a soft start circuit, the
values are not critical. Larger values are better up to a point.
For local bulk decoupling capacitors, values are usually
|
By
David Hess
·
#141798
·
|
|
Re: New member and owner of a dead 2225
With higher voltage ratings up to about 100 volts, dissipation factor
and ESR drop and ripple current rating increases. Ripple current
rating depends on ESR and surface area for dissipating heat.
With higher voltage ratings up to about 100 volts, dissipation factor
and ESR drop and ripple current rating increases. Ripple current
rating depends on ESR and surface area for dissipating heat.
|
By
David Hess
·
#141797
·
|
|
New member and owner of a Ten 465
Hello, my name is Peter Hendrickx. I’m a European who lives in Canada. I have worked for 22 years in cable TV for testing and repairing measurement equipment and amplifiers.
I’m licensed ham
Hello, my name is Peter Hendrickx. I’m a European who lives in Canada. I have worked for 22 years in cable TV for testing and repairing measurement equipment and amplifiers.
I’m licensed ham
|
By
hendrickx.peter@...
·
#141796
·
|
|
Re: New member and owner of a dead 2225
Just go up to 15uF, or 18uF, or maybe even 20uF. Odds are that the old part
was -10%,+100%, so an 18uF part would likely be spot on, and 20uF would not
harm any.
These are after all just decoupling
Just go up to 15uF, or 18uF, or maybe even 20uF. Odds are that the old part
was -10%,+100%, so an 18uF part would likely be spot on, and 20uF would not
harm any.
These are after all just decoupling
|
By
David C. Partridge
·
#141795
·
|
|
Re: New member and owner of a dead 2225
various places. I should replace them as well? I'm not wild about removing the attenuator/timebase board, though it's probably easier than it looks.
Hi Phil,
Sorry for not being clearer about my
various places. I should replace them as well? I'm not wild about removing the attenuator/timebase board, though it's probably easier than it looks.
Hi Phil,
Sorry for not being clearer about my
|
By
Tom Jobe <tomjobe@...>
·
#141794
·
|
|
Re: Engine Analyzer Plug-In Modification
Sure this does show on the outside. Just compare the photo in "Engine Analysis Measurements" (Measurement Concepts Series) with an ordinary 2B67.
For example, the text mentions a Rotational Function
Sure this does show on the outside. Just compare the photo in "Engine Analysis Measurements" (Measurement Concepts Series) with an ordinary 2B67.
For example, the text mentions a Rotational Function
|
By
Albert Otten
·
#141793
·
|
|
Re: New member and owner of a dead 2225
After a marathon session at distributor's web sites, I found a number of perfect fit replacement caps but still missing a few.
What is glaring is the absence of axial cap selection. It looks
After a marathon session at distributor's web sites, I found a number of perfect fit replacement caps but still missing a few.
What is glaring is the absence of axial cap selection. It looks
|
By
phillip.lyne.barrett
·
#141792
·
|
|
Re: DIY TD Pulser
I have also Tektronix 067-0513-00 with broken original tunnel diode. I have installed tunnel diode 1N3718 to GR-874 connector. Rise time is now 800 ps.
Eino
I have also Tektronix 067-0513-00 with broken original tunnel diode. I have installed tunnel diode 1N3718 to GR-874 connector. Rise time is now 800 ps.
Eino
|
By
Eino Väänänen
·
#141791
·
|
|
Re: are the 500 series scopes still usefull
Hi Dave,
I had a 502. Bought it from work for $400 about 1967. Very sensitive input (100uV to 100KHz) and max B.W. of 1MHz on higher ranges. Limited use for me and ended up giving it away some
Hi Dave,
I had a 502. Bought it from work for $400 about 1967. Very sensitive input (100uV to 100KHz) and max B.W. of 1MHz on higher ranges. Limited use for me and ended up giving it away some
|
By
Carl Hallberg
·
#141790
·
|
|
Re: New member and owner of a dead 2225
Thanks. I went through Mouser looking for the caps. 300 mil pitch doesn't seem to exist anymore. Will try Digi. On higher voltage caps, it's it the case the higher V often means higher ESR?
I am
Thanks. I went through Mouser looking for the caps. 300 mil pitch doesn't seem to exist anymore. Will try Digi. On higher voltage caps, it's it the case the higher V often means higher ESR?
I am
|
By
phillip.lyne.barrett
·
#141789
·
|
|
Re: New member and owner of a dead 2225
Crikey! Dave's Australian speech makes for entertaining listening but
I can understand how it would get old after a while. The same thing
happens to me if I binge watch Doctor Who episodes.
Damage
Crikey! Dave's Australian speech makes for entertaining listening but
I can understand how it would get old after a while. The same thing
happens to me if I binge watch Doctor Who episodes.
Damage
|
By
David Hess
·
#141788
·
|
|
Re: A fool and his money ...OR ... moneywell spent
Oh, and I forgot to mention that this is not something I would worry a
great deal about. Even without adjustment, the Agilent probes will be
close and you are unlikely to be measuring any signals
Oh, and I forgot to mention that this is not something I would worry a
great deal about. Even without adjustment, the Agilent probes will be
close and you are unlikely to be measuring any signals
|
By
David Hess
·
#141787
·
|
|
Re: DIY TD Pulser
Alternatively, the UKP50 pulser we discussed a month or two back that does
Alternatively, the UKP50 pulser we discussed a month or two back that does
|
By
Craig Sawyers <c.sawyers@...>
·
#141786
·
|
|
Re: New member and owner of a dead 2225
Thanks, David, Tom, Tom and Glen.
I've seen those videos. Dave's tear down is really good though my wife makes me wear headphones for any of his videos - she's a non-fan. I kind of get her
Thanks, David, Tom, Tom and Glen.
I've seen those videos. Dave's tear down is really good though my wife makes me wear headphones for any of his videos - she's a non-fan. I kind of get her
|
By
phillip.lyne.barrett
·
#141785
·
|
|
Re: DIY TD Pulser
Pardon, two of the 067-0513-00 pulse generators that David
mentioned wanting to see the inside of.
Which can be arranged, as I have two of them.
-Chuck Harris
Jeff Davis n0dyjeff@...
Pardon, two of the 067-0513-00 pulse generators that David
mentioned wanting to see the inside of.
Which can be arranged, as I have two of them.
-Chuck Harris
Jeff Davis n0dyjeff@...
|
By
Chuck Harris
·
#141784
·
|
|
Re: DIY TD Pulser
Not sure what exactly you have two of... 😊
I've posted some test results from two samples of the build I did following the notes from Sergey Kubushyn. The test was conducted over the noon hour on
Not sure what exactly you have two of... 😊
I've posted some test results from two samples of the build I did following the notes from Sergey Kubushyn. The test was conducted over the noon hour on
|
By
Jeff Davis
·
#141783
·
|