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Re: Enough of NEO and goodbye
I agree Steve,
We need to go to a google group. A retirement group to which I have belonged for 10 years has moved to Google. That solved the problems. Yahoo is falling apart and we should not have
I agree Steve,
We need to go to a google group. A retirement group to which I have belonged for 10 years has moved to Google. That solved the problems. Yahoo is falling apart and we should not have
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By
micoderup@...
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#99647
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Enough of NEO and goodbye
While I have really enjoyed contributing and reading from the groujp over the past few years, I simply don’t have the time to put up witih the inefficiencies of the NEO screw-ups and will be leaving
While I have really enjoyed contributing and reading from the groujp over the past few years, I simply don’t have the time to put up witih the inefficiencies of the NEO screw-ups and will be leaving
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By
ditter2
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#99646
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Re: 7T11 in 7854
After some more checks I suspect the -50V line. There is only -0.6V on the -50V supply and the current is -190mA. At the moment I am searching for capacitors in on this supply.
---In TekScopes@...,
After some more checks I suspect the -50V line. There is only -0.6V on the -50V supply and the current is -190mA. At the moment I am searching for capacitors in on this supply.
---In TekScopes@...,
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By
sander.slang
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#99645
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Re: 7T11 in 7854
In the mean time I hooked-up the current probe and TDS3032B oscillscope to all supply channels and measured the current during start-up and when it is clamping.
A36= ~0mA
B35=~0mA
A19=+20mA
In the mean time I hooked-up the current probe and TDS3032B oscillscope to all supply channels and measured the current during start-up and when it is clamping.
A36= ~0mA
B35=~0mA
A19=+20mA
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By
sander.slang
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#99644
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
THANKS!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
mst3krules@... wrote:
THANKS!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
mst3krules@... wrote:
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By
Garey Barrell <k4oah@...>
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#99643
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Re: Understanding Voltage Multipliers
Also keep in mind that Tektronix was not always consistent in how they referred
to their high voltage multipliers.
The same 152-0493-00 multiplier is marked x14 in the 7844 schematic, x7 in the
7904
Also keep in mind that Tektronix was not always consistent in how they referred
to their high voltage multipliers.
The same 152-0493-00 multiplier is marked x14 in the 7844 schematic, x7 in the
7904
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By
David Hess
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#99642
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
Excellent. Thank you.
I probably have the same data in my old ECG book but I have no idea where I
stored it.
Excellent. Thank you.
I probably have the same data in my old ECG book but I have no idea where I
stored it.
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By
David Hess
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#99641
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
Got the scanner working. Th file is in the Files section as ECG High Voltage Triplers.
---In TekScopes@..., <tekscopes@...> wrote:
I'm interested!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B,
Got the scanner working. Th file is in the Files section as ECG High Voltage Triplers.
---In TekScopes@..., <tekscopes@...> wrote:
I'm interested!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B,
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By
mst3krules
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#99640
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
I just found out my scanner isn't working correctly. I will post it as soon as I can get it scanned.
---In TekScopes@..., <tekscopes@...> wrote:
I'm interested!
73, Garey - K4OAH
Glen Allen,
I just found out my scanner isn't working correctly. I will post it as soon as I can get it scanned.
---In TekScopes@..., <tekscopes@...> wrote:
I'm interested!
73, Garey - K4OAH
Glen Allen,
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By
mst3krules
·
#99639
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Re: Is this amount of noise typical? Tek 2465
<<So I use that one for 'rough' work for now. Hope to get a 160Mhz Rigol Arb Function gen to use to cal, along with a jim williams pulse gen.>>
---In tekscopes@..., <mosaicmerc@...> wrote:
Change
<<So I use that one for 'rough' work for now. Hope to get a 160Mhz Rigol Arb Function gen to use to cal, along with a jim williams pulse gen.>>
---In tekscopes@..., <mosaicmerc@...> wrote:
Change
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By
bpl521
·
#99638
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Re: DIY 3X High Voltage Multiplier Installation
Tom Jobe wrote:
Here are the current stocking distributors, or you may be able to buy it direct from NTE:
http://dilp.netcomponents.com/cgi-bin/nteinc.asp?partnumber1=NTE538
Tom Jobe wrote:
Here are the current stocking distributors, or you may be able to buy it direct from NTE:
http://dilp.netcomponents.com/cgi-bin/nteinc.asp?partnumber1=NTE538
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By
Michael A. Terrell
·
#99637
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Re: Understanding Voltage Multipliers
Nice description. I would point out that it doesn't matter what the DC bias is on the input square wave provided it doesn't exceed C1 voltage rating. C1 blocks any DC and it's only the
Nice description. I would point out that it doesn't matter what the DC bias is on the input square wave provided it doesn't exceed C1 voltage rating. C1 blocks any DC and it's only the
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By
Don Black <donald_black@...>
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#99636
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Re: DIY 3X High Voltage Multiplier Installation
Reed Dickinson wrote:
I have a 20+ year old ECG cross reference book somewhere. If I can find it, I will get the data. It seems to me that the 520 was for a B&W or 13" color TV, but I haven't replaced
Reed Dickinson wrote:
I have a 20+ year old ECG cross reference book somewhere. If I can find it, I will get the data. It seems to me that the 520 was for a B&W or 13" color TV, but I haven't replaced
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By
Michael A. Terrell
·
#99635
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Understanding Voltage Multipliers
With all the current interest in voltage multipliers, including theory and construction, I feel it is about time to talk technically about them.
I am inserting a schematic of a voltage
With all the current interest in voltage multipliers, including theory and construction, I feel it is about time to talk technically about them.
I am inserting a schematic of a voltage
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By
Reed Dickinson
·
#99634
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Re: DIY 3X High Voltage Multiplier Installation
Hi Reed,
Thank you for documenting the ECG538/NTE538 multiplieradaptation for the 4xx scopes such as the 465 and 475families!
Who would you suggest as a source for thismultiplier? I would like to buy
Hi Reed,
Thank you for documenting the ECG538/NTE538 multiplieradaptation for the 4xx scopes such as the 465 and 475families!
Who would you suggest as a source for thismultiplier? I would like to buy
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By
Tom Jobe <tomjobe@...>
·
#99633
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Lemo Part 802
Hi all,
Anyone know where I can get a Lemo male insert part number 802? It isa size 2B with one coax and two signal pins. This is to make up a BNCcable for the CG5011 calibrator. I can find all the
Hi all,
Anyone know where I can get a Lemo male insert part number 802? It isa size 2B with one coax and two signal pins. This is to make up a BNCcable for the CG5011 calibrator. I can find all the
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By
Tom Miller
·
#99632
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
I'm interested!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
mst3krules@... wrote:
I'm interested!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
mst3krules@... wrote:
|
By
Garey Barrell <k4oah@...>
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#99631
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
I don't know about anyone else, but I'm interested in your ECGmultiplier information!
tom jobe...
I don't know about anyone else, but I'm interested in your ECGmultiplier information!
tom jobe...
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By
Tom Jobe <tomjobe@...>
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#99630
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Re: DIY High Voltage Multiplier Thoughts or Suggestions
I found some data on the ECG high voltage triplers if you are still interested.
---In TekScopes@..., <tekscopes@...> wrote:
Well, well, perhaps I've got it. Not finding any documentation on the
I found some data on the ECG high voltage triplers if you are still interested.
---In TekScopes@..., <tekscopes@...> wrote:
Well, well, perhaps I've got it. Not finding any documentation on the
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By
mst3krules
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#99629
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Re: DIY 3X High Voltage Multiplier Installation
i've done HV splices, first with a little bit of corona dope and then using plumbing Teflon tape, create an insulating layer.
This
i've done HV splices, first with a little bit of corona dope and then using plumbing Teflon tape, create an insulating layer.
This
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By
KeepIt SimpleStupid
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#99628
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