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P6137 scope probe repair
Hi, On the 2440 and its sibling DSOs, the scope can be configured to do various things on pressing the probe button, like saving the waveform or switching between predefined configuration settings. Th
Hi, On the 2440 and its sibling DSOs, the scope can be configured to do various things on pressing the probe button, like saving the waveform or switching between predefined configuration settings. Th
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Szabolcs Szigeti
· #176868
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tektronix 7S14 batteries and time base question
Hi Dennis, Yes, you are right. 3 out of 4 batteries still work. The fourth.one had zero volts. So I was able to verify that the plugin works. Ch1 was good ant interestingly Ch 2 sort of worked also. I
Hi Dennis, Yes, you are right. 3 out of 4 batteries still work. The fourth.one had zero volts. So I was able to verify that the plugin works. Ch1 was good ant interestingly Ch 2 sort of worked also. I
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Szabolcs Szigeti
· #175401
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tektronix 7S14 batteries and time base question
Hi Rick, I'm in a similar situation, I'm going with LEDs. It is a very useful plugin. I got a lot of useful advice from this list on it. I have already selected the LEDs from my drawer of parts, but c
Hi Rick, I'm in a similar situation, I'm going with LEDs. It is a very useful plugin. I got a lot of useful advice from this list on it. I have already selected the LEDs from my drawer of parts, but c
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Szabolcs Szigeti
· #175392
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Readout for 5s14n - please validate my idea
Hi, Yes, I have a 5440, it has readout. I was actually wondering why Tek left out the readout from the 5s14n. Was it for compatibility with the low speed 5000 mainframes? Or was it some business decis
Hi, Yes, I have a 5440, it has readout. I was actually wondering why Tek left out the readout from the 5s14n. Was it for compatibility with the low speed 5000 mainframes? Or was it some business decis
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Szabolcs Szigeti
· #175152
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Readout for 5s14n - please validate my idea
Hi, I'm working on a hobby project to enable readout for the 5S14N. As far as I know after a lot of reading on manuals that the 7000 and 5000 series readout is basically the same. I know that the 7S14
Hi, I'm working on a hobby project to enable readout for the 5S14N. As far as I know after a lot of reading on manuals that the 7000 and 5000 series readout is basically the same. I know that the 7S14
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Szabolcs Szigeti
· #175135
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Push button font
Hi, Robin Renzetti (Robrenz) did an extreme restoration on a 7603, he documented it on eevblog: https://www.eevblog.com/forum/testgear/tek-7603-scope-w-7a18-amp-7b53a-timebase-restoration/msg172135/#m
Hi, Robin Renzetti (Robrenz) did an extreme restoration on a 7603, he documented it on eevblog: https://www.eevblog.com/forum/testgear/tek-7603-scope-w-7a18-amp-7b53a-timebase-restoration/msg172135/#m
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Szabolcs Szigeti
· #174829
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Tek 2430A collapsed screen image
Hi, This could be a lot of things. But the first thing is to check the power supplies. If you don't have the service manual, first get it from for example TekWiki: http://w140.com/tekwiki/wiki/2430 Ch
Hi, This could be a lot of things. But the first thing is to check the power supplies. If you don't have the service manual, first get it from for example TekWiki: http://w140.com/tekwiki/wiki/2430 Ch
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Szabolcs Szigeti
· #172516
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Looking for calculator keyboard for 7854
Hi, How on earth did they lose the package? Szabolcs Martin Whybrow <martin@...> ezt írta (időpont: 2020. szept. 22., K, 10:49):
Hi, How on earth did they lose the package? Szabolcs Martin Whybrow <martin@...> ezt írta (időpont: 2020. szept. 22., K, 10:49):
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Szabolcs Szigeti
· #171735
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Strange Tek2440 issue
Hi, I would first check the power supply. I'm not a big fan of "the universal internet method of fixing everything", that is indiscriminately recapping stuff, but in the case of the 24xx family DSOs,
Hi, I would first check the power supply. I'm not a big fan of "the universal internet method of fixing everything", that is indiscriminately recapping stuff, but in the case of the 24xx family DSOs,
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Szabolcs Szigeti
· #171239
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NORM/VERT trigger source on 2440 family
Hi, I don't think this is possible on the 2440. This scope closely mimics the controls of the analog scopes, but inside it works differently. Both channels are acquired simultaneously and constantly a
Hi, I don't think this is possible on the 2440. This scope closely mimics the controls of the analog scopes, but inside it works differently. Both channels are acquired simultaneously and constantly a
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Szabolcs Szigeti
· #170666
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5S14N what should I know?
Hi, Thanks, it is good to know that longer wires make such a difference in this application. Although maybe that could be solved by placing a capacitor right next to the board. I'll have to experiment
Hi, Thanks, it is good to know that longer wires make such a difference in this application. Although maybe that could be solved by placing a capacitor right next to the board. I'll have to experiment
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Szabolcs Szigeti
· #170500
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5S14N what should I know?
Hi, I managed to get a 5S14n on eBay for my 5440, I reckon it is somewhat of a rare item. While it is still being shipped, I'm preparing for what I will need to do. So far I've already read through th
Hi, I managed to get a 5S14n on eBay for my 5440, I reckon it is somewhat of a rare item. While it is still being shipped, I'm preparing for what I will need to do. So far I've already read through th
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Szabolcs Szigeti
· #170481
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AWG2021 Sample Waveform Library
Thank you for sharing this. Szabolcs Martin Hodge <mhodge@...> ezt írta (időpont: 2020. aug. 5., Sze 19:56):
Thank you for sharing this. Szabolcs Martin Hodge <mhodge@...> ezt írta (időpont: 2020. aug. 5., Sze 19:56):
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Szabolcs Szigeti
· #170230
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AWG2021 Sample Waveform Library
Hi, I'll be very much interested in it. I also have a recently resurrected 2021. Szabolcs Martin Hodge <mhodge@...> ezt írta (időpont: 2020. aug. 4., K, 4:32):
Hi, I'll be very much interested in it. I also have a recently resurrected 2021. Szabolcs Martin Hodge <mhodge@...> ezt írta (időpont: 2020. aug. 4., K, 4:32):
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Szabolcs Szigeti
· #170064
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A Drop-In Replacement for the U800 (2400 scopes)
Hi Ram, Wow! This is a very exciting project and shows really cool results. Unfortunately this means that I will need look around and buy a 2465 so now I can be sure that u800 problem wont hit me :-)
Hi Ram, Wow! This is a very exciting project and shows really cool results. Unfortunately this means that I will need look around and buy a 2465 so now I can be sure that u800 problem wont hit me :-)
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Szabolcs Szigeti
· #168128
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TM 500 Front Panels
Hi, I'm not experienced in 3D printing, but would it be possible to have this in two parts? A frond and a back part printed and then glued together by their flat side. This would make it possible to c
Hi, I'm not experienced in 3D printing, but would it be possible to have this in two parts? A frond and a back part printed and then glued together by their flat side. This would make it possible to c
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Szabolcs Szigeti
· #168101
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Tek 5440
Hi, 5000 plugins do fit and work in the 5400. But not the other way around. Of course the bandwidth is limited by the plugin and no readout. I have some 5000 series plugin such as the 5a14 or the 5ct1
Hi, 5000 plugins do fit and work in the 5400. But not the other way around. Of course the bandwidth is limited by the plugin and no readout. I have some 5000 series plugin such as the 5a14 or the 5ct1
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Szabolcs Szigeti
· #166720
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2430A Fails Repet
Hi, Yes, you need to use the Dallas nvram, with built in battery. I suppose it would be possible to restore the external battery but there are some components that would need to be populated. However,
Hi, Yes, you need to use the Dallas nvram, with built in battery. I suppose it would be possible to restore the external battery but there are some components that would need to be populated. However,
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Szabolcs Szigeti
· #165742
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2430A Fails Repet
Hi, Remove, clean an reseat the hybrid circuits. Look at the details in the extended diagnostics. If it is one channel that fails, you can swap the ICs to find if any of them id bad. Although I'm not
Hi, Remove, clean an reseat the hybrid circuits. Look at the details in the extended diagnostics. If it is one channel that fails, you can swap the ICs to find if any of them id bad. Although I'm not
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Szabolcs Szigeti
· #165393
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Tektronix 2440 no channel 2 trace
Hi, First see what the extended diagnostics says. Then the usual suspects: Power supply voltages and ripple. Remove the hybrids from their socket, clean the contacts a reseat then. If that does not he
Hi, First see what the extended diagnostics says. Then the usual suspects: Power supply voltages and ripple. Remove the hybrids from their socket, clean the contacts a reseat then. If that does not he
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Szabolcs Szigeti
· #165323
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