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HV curve tracer project - need info on vacuum tube X-ray shielding
On Tue, 26 Nov 2019, Ed Breya via Groups.Io wrote: There will be very little X-ray at 15kV if any at all. However if you want to shield it anyway thin aluminum would do just fine. It is used to block
On Tue, 26 Nov 2019, Ed Breya via Groups.Io wrote: There will be very little X-ray at 15kV if any at all. However if you want to shield it anyway thin aluminum would do just fine. It is used to block
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Sergey Kubushyn
· #161922
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Tektronix Spectrum Analyzers
On Mon, 4 Nov 2019, Jack Reynolds wrote: Don't know about older ones but 492BP/494AP are pretty reliable, quite easy to fix, very rugged and pleasure to work with/on. The "on" part is here because I d
On Mon, 4 Nov 2019, Jack Reynolds wrote: Don't know about older ones but 492BP/494AP are pretty reliable, quite easy to fix, very rugged and pleasure to work with/on. The "on" part is here because I d
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Sergey Kubushyn
· #161351
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260-2500-00 Encoder
OK, as I already said it is _NOT_ long enough. I disassembled your encoder to find out what's inside and it is not a reversible task -- the entire thing is held together with melted plastic pegs that
OK, as I already said it is _NOT_ long enough. I disassembled your encoder to find out what's inside and it is not a reversible task -- the entire thing is held together with melted plastic pegs that
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Sergey Kubushyn
· #161222
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260-2500-00 Encoder
On Tue, 29 Oct 2019, Clark Foley wrote: Unfortunately it is not long enough... I'll work something out but it would be more mechanical work than expected. No biggie but not a quick job either. > If th
On Tue, 29 Oct 2019, Clark Foley wrote: Unfortunately it is not long enough... I'll work something out but it would be more mechanical work than expected. No biggie but not a quick job either. > If th
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By
Sergey Kubushyn
· #161199
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260-2500-00 Encoder
On Mon, 28 Oct 2019, Clark Foley wrote: OK, I was too quick to draw :( Just disassembled my CG5011. Electrically and mechanically those are compatible, no worries here. However it is _NOT_ a replaceme
On Mon, 28 Oct 2019, Clark Foley wrote: OK, I was too quick to draw :( Just disassembled my CG5011. Electrically and mechanically those are compatible, no worries here. However it is _NOT_ a replaceme
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By
Sergey Kubushyn
· #161177
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260-2500-00 Encoder
On Thu, 24 Oct 2019, Sergey Kubushyn wrote: One more followup to myself :) Got that encoder from Clark Foley today, checked it and it should work in CG5011. It has 16 detents on outer shaft instead of
On Thu, 24 Oct 2019, Sergey Kubushyn wrote: One more followup to myself :) Got that encoder from Clark Foley today, checked it and it should work in CG5011. It has 16 detents on outer shaft instead of
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Sergey Kubushyn
· #161171
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260-2500-00 Encoder
On Wed, 23 Oct 2019, Sergey Kubushyn wrote: OK, follow up to myself :) There are 2 types of detented quadrature rotary encoders. Those with number of detents equal to number of PPR (Pulses Per Revolut
On Wed, 23 Oct 2019, Sergey Kubushyn wrote: OK, follow up to myself :) There are 2 types of detented quadrature rotary encoders. Those with number of detents equal to number of PPR (Pulses Per Revolut
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By
Sergey Kubushyn
· #161064
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260-2500-00 Encoder
On Wed, 23 Oct 2019, Jacques DULONGPONT wrote: Eh, all quadrature encoders are Gray code output devices :) As of delivering pulses -- they don't. It only happens if you use an encoder with too many PP
On Wed, 23 Oct 2019, Jacques DULONGPONT wrote: Eh, all quadrature encoders are Gray code output devices :) As of delivering pulses -- they don't. It only happens if you use an encoder with too many PP
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By
Sergey Kubushyn
· #161029
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260-2500-00 Encoder
On Wed, 23 Oct 2019, Clark Foley wrote: It would've been very nice. I will send my address in a personal email. > I can send a mechanical sample to you if you want to try to replace the > shaft in you
On Wed, 23 Oct 2019, Clark Foley wrote: It would've been very nice. I will send my address in a personal email. > I can send a mechanical sample to you if you want to try to replace the > shaft in you
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By
Sergey Kubushyn
· #161008
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260-2500-00 Encoder
On Tue, 22 Oct 2019, Sergey Kubushyn wrote: These might be a suitable candidates: https://www.ebay.com/itm/292950522330 https://www.ebay.com/itm/161110042181 The first one definitely comes from China
On Tue, 22 Oct 2019, Sergey Kubushyn wrote: These might be a suitable candidates: https://www.ebay.com/itm/292950522330 https://www.ebay.com/itm/161110042181 The first one definitely comes from China
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By
Sergey Kubushyn
· #160993
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260-2500-00 Encoder
On Tue, 22 Oct 2019, Sergey Kubushyn wrote: BTW, the full Oak Grigsby part number is 70098-0020. > On Tue, 22 Oct 2019, Clark Foley wrote: > > Those look similar but it is not what's in CG5011. It is
On Tue, 22 Oct 2019, Sergey Kubushyn wrote: BTW, the full Oak Grigsby part number is 70098-0020. > On Tue, 22 Oct 2019, Clark Foley wrote: > > Those look similar but it is not what's in CG5011. It is
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Sergey Kubushyn
· #160992
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260-2500-00 Encoder
On Tue, 22 Oct 2019, Clark Foley wrote: Those look similar but it is not what's in CG5011. It is the same company, OAKGRIGSBY, but they have leads coming in the opposite direction (that one in CG5011
On Tue, 22 Oct 2019, Clark Foley wrote: Those look similar but it is not what's in CG5011. It is the same company, OAKGRIGSBY, but they have leads coming in the opposite direction (that one in CG5011
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Sergey Kubushyn
· #160991
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260-2500-00 Encoder
On Mon, 21 Oct 2019, Jacques DULONGPONT wrote: Nope, no attachments found. They do not make it into group email. Would you please re-send it to my email directly (it is my actual email in my messages)
On Mon, 21 Oct 2019, Jacques DULONGPONT wrote: Nope, no attachments found. They do not make it into group email. Would you please re-send it to my email directly (it is my actual email in my messages)
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Sergey Kubushyn
· #160949
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260-2500-00 Encoder
On Mon, 21 Oct 2019, Jacques DULONGPONT wrote: What is "this" solution? > Hello > > This solution may be of help to your problem. > > Jacques > > Le sam. 19 oct. 2019 à 06:43, Sergey Kubushyn <ksi@koi
On Mon, 21 Oct 2019, Jacques DULONGPONT wrote: What is "this" solution? > Hello > > This solution may be of help to your problem. > > Jacques > > Le sam. 19 oct. 2019 à 06:43, Sergey Kubushyn <ksi@koi
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By
Sergey Kubushyn
· #160937
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7934/7834 transformer rewing
On Sun, 20 Oct 2019, Craig Sawyers wrote: I made the same mistake :) Morgan McDowell from Hamamatsu who has been very helpful in getting manuals for my Microfocus X-Ray sources also turned out to be a
On Sun, 20 Oct 2019, Craig Sawyers wrote: I made the same mistake :) Morgan McDowell from Hamamatsu who has been very helpful in getting manuals for my Microfocus X-Ray sources also turned out to be a
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By
Sergey Kubushyn
· #160917
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Practicing "Safe RF" RF: DC block, RF Attenuator and/or limiter?
On Sun, 20 Oct 2019, Greg Muir via Groups.Io wrote: I second that. Mini Circuits stuff is really good and performance / price ratio is probably better than anyone's else. And they make lots of differe
On Sun, 20 Oct 2019, Greg Muir via Groups.Io wrote: I second that. Mini Circuits stuff is really good and performance / price ratio is probably better than anyone's else. And they make lots of differe
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By
Sergey Kubushyn
· #160913
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260-2500-00 Encoder
There was some announcement a year or so ago that somebody has several of those in stock. Don't know who it was and if there are still some available bue I need one for my recently acquired CG5011 tha
There was some announcement a year or so ago that somebody has several of those in stock. Don't know who it was and if there are still some available bue I need one for my recently acquired CG5011 tha
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By
Sergey Kubushyn
· #160888
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Tek 492xx 492BP Calibration Test Cable, How long?
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: Just checked on my 494AP. Nothing after first band. > Sergey, > So it is the output of a comb generator with harmonics from 100 MHz up > through the
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: Just checked on my 494AP. Nothing after first band. > Sergey, > So it is the output of a comb generator with harmonics from 100 MHz up > through the
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Sergey Kubushyn
· #160832
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Tek 492xx 492BP Calibration Test Cable, How long?
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: I don't remember if CAL generator is on in other bands, will have to check it when I'm back home. I actually never even tried... It is usually used
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: I don't remember if CAL generator is on in other bands, will have to check it when I'm back home. I actually never even tried... It is usually used
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By
Sergey Kubushyn
· #160819
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Tek 492xx 492BP Calibration Test Cable, How long?
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: Yep, it is not dirty, it is specifically done this way so you can see harmonics as 100MHz marks. And yes, fundamental is calibrated to a known power
On Mon, 14 Oct 2019, Konrad Roeder -- WA4OSH wrote: Yep, it is not dirty, it is specifically done this way so you can see harmonics as 100MHz marks. And yes, fundamental is calibrated to a known power
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By
Sergey Kubushyn
· #160814
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