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Re: SG504 Frq. Display & Digital amplitude flattening.
@1: Is HiSpeed CMOS fast enough these days to allow 1 GHz frequency measurement and if so, at what
power dissipation?
Maybe AHC but I'm looking @ a MC12080 prescaler. Divide by 80 with a 4mS
@1: Is HiSpeed CMOS fast enough these days to allow 1 GHz frequency measurement and if so, at what
power dissipation?
Maybe AHC but I'm looking @ a MC12080 prescaler. Divide by 80 with a 4mS
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By
mosaicmerc
·
#126581
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Re: 7S12 TDR Cable
Hi Raymond,
Thanks for the correction. You are correct, I meant the S-4 head.
So many heads, so little time to use them all! Sigh!
I even have an S42 Optical to Electrical head which is quite rare.
Hi Raymond,
Thanks for the correction. You are correct, I meant the S-4 head.
So many heads, so little time to use them all! Sigh!
I even have an S42 Optical to Electrical head which is quite rare.
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By
Dennis Tillman W7pF
·
#126580
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Re: SG504 Frq. Display & Digital amplitude flattening.
No, a power hungry prescaler has to be used. Since the prescaler and
signal conditioning will draw a lot of power, they will have to be
powered down most of the time. Note that they have to be
No, a power hungry prescaler has to be used. Since the prescaler and
signal conditioning will draw a lot of power, they will have to be
powered down most of the time. Note that they have to be
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By
David Hess
·
#126579
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Re: SG504 Frq. Display & Digital amplitude flattening.
Hi Ancel,
I find your energy level to be very refreshing. I wish there were more
'makers' on the forum like you. I do however, tend to agree with Raymond
that improving the SG504 with a more accurate
Hi Ancel,
I find your energy level to be very refreshing. I wish there were more
'makers' on the forum like you. I do however, tend to agree with Raymond
that improving the SG504 with a more accurate
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By
Dennis Tillman W7pF
·
#126578
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Re: 7S12 TDR Cable
I guess that's an S-4 sampling head ;-(
Raymond
I guess that's an S-4 sampling head ;-(
Raymond
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By
Raymond Domp Frank
·
#126577
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Yahoo was rejecting emails Monday night
I noticed Yahoo did not accept any of the emails I sent Monday night.
It appeared that whatever caused this problem occurred from 6:30PM until
about 11:30PM Monday night since there are no entries
I noticed Yahoo did not accept any of the emails I sent Monday night.
It appeared that whatever caused this problem occurred from 6:30PM until
about 11:30PM Monday night since there are no entries
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By
Dennis Tillman W7pF
·
#126576
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Re: 7S12 TDR Cable
When I tried to send this last night at 8:07PM PST Yahoo rejected it. In
fact it seemed to have been rejecting emails for a few hours.
Dennis
When I tried to send this last night at 8:07PM PST Yahoo rejected it. In
fact it seemed to have been rejecting emails for a few hours.
Dennis
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By
Dennis Tillman W7pF
·
#126575
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Re: 7S12 TDR Cable
When I tried to send this last night at 7:51PM PST Yahoo rejected it. In
fact it seemed to have been rejecting emails for a few hours.
Dennis
When I tried to send this last night at 7:51PM PST Yahoo rejected it. In
fact it seemed to have been rejecting emails for a few hours.
Dennis
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By
Dennis Tillman W7pF
·
#126574
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Re: SG504 Frq. Display & Digital amplitude flattening.
@1: Is HiSpeed CMOS fast enough these days to allow 1 GHz frequency measurement and if so, at what power dissipation?
@ 3: I think sampling and timestamping the samples during calibration will need
@1: Is HiSpeed CMOS fast enough these days to allow 1 GHz frequency measurement and if so, at what power dissipation?
@ 3: I think sampling and timestamping the samples during calibration will need
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By
Raymond Domp Frank
·
#126573
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Re: SG504 Frq. Display & Digital amplitude flattening.
Good comments...:
1. A digital frequency meter operating at up to 1+ GHz running for long hours on a lithium battery is no easy thing to accomplish, to say the least. Tricks may be possible because
Good comments...:
1. A digital frequency meter operating at up to 1+ GHz running for long hours on a lithium battery is no easy thing to accomplish, to say the least. Tricks may be possible because
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By
mosaicmerc
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#126572
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Re: 465 oscilloscope problem
So to get this right so I can order the new capacitors for the 465 oscilloscope the C1419 replace with
So to get this right so I can order the new capacitors for the 465 oscilloscope the C1419 replace with
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By
Tewell, Kevin <tewell.ka@...>
·
#126571
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Re: TM5006 Capacitors
Not at all overkill. I guess I won't be finding the5-pin Sprague footprint.
JimMc
From: "David DiGiacomo telists@... [TekScopes]" <TekScopes@...>
To:
Cc: TekScopes
Not at all overkill. I guess I won't be finding the5-pin Sprague footprint.
JimMc
From: "David DiGiacomo telists@... [TekScopes]" <TekScopes@...>
To:
Cc: TekScopes
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By
J Mcvein
·
#126570
·
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Re: TM5006 Capacitors
How about CDE 380LX122M400A082? Overkill?
http://www.findchips.com/search/380LX122M400A082
How about CDE 380LX122M400A082? Overkill?
http://www.findchips.com/search/380LX122M400A082
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By
David DiGiacomo
·
#126569
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For sale in UK: 549 with 1A4 plugin
Hi Tek fans,
Due to lack of space, I reluctantly have to part with my 549 and its 1A4
plugin. I restored it to clean working order a couple of years ago and it's
still in excellent shape.
You can
Hi Tek fans,
Due to lack of space, I reluctantly have to part with my 549 and its 1A4
plugin. I restored it to clean working order a couple of years ago and it's
still in excellent shape.
You can
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By
cmjones01
·
#126568
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Re: SG504 Frq. Display & Digital amplitude flattening.
I think the idea is very nice in terms of usefulness, however, IMHO it may be taking things a bit too far. I see a few issues that would have to be dealt with, especially if you'd want to power the
I think the idea is very nice in terms of usefulness, however, IMHO it may be taking things a bit too far. I see a few issues that would have to be dealt with, especially if you'd want to power the
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By
Raymond Domp Frank
·
#126567
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Re: 2465B U400 Availability?
Join the club... Happy that your 'scope is fixed.
Raymond
Join the club... Happy that your 'scope is fixed.
Raymond
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By
Raymond Domp Frank
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#126566
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Re: 2465B U400 Availability?
In an earlier post, I said that I too had a 2465B showing vertical compression of ch 1 and ch 2 only in the lower half of the screen and I suspected a U400 problem. For the record my replacement part
In an earlier post, I said that I too had a 2465B showing vertical compression of ch 1 and ch 2 only in the lower half of the screen and I suspected a U400 problem. For the record my replacement part
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By
Roger Evans
·
#126565
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SG504 Frq. Display & Digital amplitude flattening.
Hi all:
My recent efforts in optimizing the SG504 head has led to this concept which addresses a lack of accurate freq. display and amplitude compensation using digital controls.
These functions
Hi all:
My recent efforts in optimizing the SG504 head has led to this concept which addresses a lack of accurate freq. display and amplitude compensation using digital controls.
These functions
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By
mosaicmerc
·
#126564
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Re: The 7J20 Patent is now in the archives
Thanks!
De: TekScopes@... [mailto:TekScopes@...]
Enviado el: martes, 5 de abril de 2016 1:28
Para: TekScopes@...
Asunto: [TekScopes] The 7J20 Patent is now in
Thanks!
De: TekScopes@... [mailto:TekScopes@...]
Enviado el: martes, 5 de abril de 2016 1:28
Para: TekScopes@...
Asunto: [TekScopes] The 7J20 Patent is now in
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By
Miguel Work
·
#126563
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Re: The 7J20 Patent is now in the archives
Hi to All,
Dennis Tillman provided me the pdf of the 7J20 Patent Document. This for uploading it into the 7J20 & J20 Photo Album. This didn't work, therefore it is now in the Files Section,
Hi to All,
Dennis Tillman provided me the pdf of the 7J20 Patent Document. This for uploading it into the 7J20 & J20 Photo Album. This didn't work, therefore it is now in the Files Section,
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By
Egge Siert
·
#126562
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