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Re: Upload a picture
On Mon, Apr 25, 2022 at 01:11 AM, JohnEdward wrote:
Can a picture accompany a messageI hope not, because if it does it is only visible to those who read the group via email. Those of us who only use the Web interface can never see it. or does it require it being sent to the Photos?Yes please. EJP |
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Re: Tek 284 Pulse Gen
This is all well timed and awesome information. I was looking at the Pasternack gear because that is what was popping up in searches. Fortunately no money has changed hands yet. Ill be speaking with mini-circuits on the early side of next week.
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Zen -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave Seiter Sent: Sunday, April 24, 2022 7:22 PM To: [email protected] Subject: Re: [TekScopes] Tek 284 Pulse Gen And in the era of paper, much better catalogs. Pasternack's always seemed to be so cheap in quality. Hardly any info/data. We used them as an alternate source of last resort. -Dave On Sunday, April 24, 2022, 12:25:55 PM PDT, Tom Lee <tomlee@...> wrote: I second Jim's recommendation. In addition to better pricing, Mini-Circuits just has nicer folks. Pasternack once actually made one of my former admins weep. She had never been so mistreated by a vendor. I've not bought from them in 25 years as a result. Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070 On 4/24/2022 12:19, Jim Ford wrote: Hey, Zen, if you want to buy new 3.5 mm to SMA adaptors, check out |
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Re: Upload a picture
On Mon, Apr 25, 2022 at 01:24 AM, ken chalfant wrote:
Hi, You might want to cull your links a bit, a lot of that extra stuff is tracking information, and the links don't seem to work anyway.... I would suggest to uninstall whatever is causing that, it looks a little nefarious to be hijacking links and your clipboard etc like that... The correct link is as follows: /g/TekScopes/photos Regards, Jared |
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Re: Tek 284 Pulse Gen
And in the era of paper, much better catalogs.? Pasternack's always seemed to be so cheap in quality.? Hardly any info/data.? We used them as an alternate source of last resort.
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-Dave On Sunday, April 24, 2022, 12:25:55 PM PDT, Tom Lee <tomlee@...> wrote:
I second Jim's recommendation. In addition to better pricing, Mini-Circuits just has nicer folks. Pasternack once actually made one of my former admins weep. She had never been so mistreated by a vendor. I've not bought from them in 25 years as a result. Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070 On 4/24/2022 12:19, Jim Ford wrote: Hey, Zen, if you want to buy new 3.5 mm to SMA adaptors, check out Mini-Circuits.? A couple years ago I needed some for work and found the M-C ones about a third the price of rip-off Pasternack.? $60 apiece vs. $180, IIRC, for similar specs.? Can't help you with GR adaptors, though.? Good luck!Jim FordSent from my T-Mobile 4G LTE Device |
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Tektronix Manuals
Greetings,
I have the following Tektronix PAPER manuals that are surplus to my needs. Models: 1a1,7a16p,1a2,7a18,7a26,7b53a,7b80 7b85,j16,c30a,c50,51,52,c59a,c70 134,176,tm501,am503,520a,535a,576 p6006,1101,1410,p6009,p6011,p6075 p6101,p6106,p6302,7403n,7612d,7834 If you are interested in purchasing any send me a PERSONAL email for price and availability.. 73 Gordon BAtey WA4FJC gpbatey@... |
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Re: Tek 2232 Scope
Thank you. That is a pretty good idea. I think I will do some searching this week, when businesses are open, to see if I can find a compatible replacement connector, male and female. If that fails I think I will go the solder route. With the P9010/J9010 on the other end one will still be able to completely remove the board, once you lift P9010. Looking closely at the W9011/J9011 construction there is a possibility that J9011 was designed not to be removed from the board.
Thanks again for the idea. You've put me back on track to make a non-hack fix if I can't find a connector. |
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Re: 2465 Calibration
Mark,
I can appreciate the conservative approach to dealing with this device given the limited R/W cycles. There may be something that happens during a calibration sequence in addition to the new changes that would be entered. Aside from that it looks like you really have to jump through hoops to deal with this device especially if the scope does not have the option 10. Greg |
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OT then way OT
I hope this works!
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Ken Begin forwarded message: |
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Re: Upload a picture
Instead of including the link I will share the original email in case I did something wrong.
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I will forward it next. Ken. On 24Apr, 2022, at 2:13 PM, JohnEdward via groups.io <JohnEdwardShea@...> wrote: |
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Re: 2465 Calibration
Hi Greg,
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I have not seen any en-masse R/E/W refresh behavior for the ER1400 in the 2465. Most (or all) of the ER1400 is read on boot to verify the checksum but that probably doesn't count as a refresh. The only somewhat periodic writing that's done is saving "soft" front panel settings. By "soft" I mean things that don't have a physical position that can be re-read on power-up such as coupling, cursor visibility, trigger source, etc. Whenever any soft setting is changed, the 2465 sets a timer for 10 seconds. When the user stops making changes and the timer expires, the settings will be written to the ER1400. (An unobvious consequence of this is if you change a setting and turn the scope off in less that 10 seconds, the setting will be gone; that's usually not a big deal or even noticed.) Tek appears to be fairly conservative in writing to the ER1400 perhaps to maximize the life expectancy. -mark On Sun, Apr 24, 2022 at 01:18 PM, Greg Muir wrote:
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Re: Tek 284 Pulse Gen
I will check them out. I have a mini circuits DC block for the spectrum analyzer that is really nice. Was reasonable priced, As reasonably priced as a DC block well in to the Ghz can be. If that is the case I might be able to sneak it in with the 7510 meter cal this week.
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Zen -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Tom Lee Sent: Sunday, April 24, 2022 3:26 PM To: [email protected] Subject: Re: [TekScopes] Tek 284 Pulse Gen I second Jim's recommendation. In addition to better pricing, Mini-Circuits just has nicer folks. Pasternack once actually made one of my former admins weep. She had never been so mistreated by a vendor. I've not bought from them in 25 years as a result. Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070 On 4/24/2022 12:19, Jim Ford wrote: Hey, Zen, if you want to buy new 3.5 mm to SMA adaptors, check out |
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Re: Peak Detector to Validate Tek Const. Ampl. Signal Gen. (067-0532-00)
On Sun, Apr 24, 2022 at 12:57 PM, Jeff Dutky wrote:
Both versions of the manual state that the batteries should be replaced ¡°when the voltage drops below 1.33 V, or after one year¡± but I will tryI had to check w/Wikipedia, but it says the open circuit voltage of a mercury cell is 1.35 V, and that they hold their voltage very level for most of their lifetime, so perhaps 1.25 is near end of life. At any rate, we know it's old, since mercury batteries have not been made for several decades. I wonder how we should dispose of these now? |
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Re: Tek 284 Pulse Gen
I second Jim's recommendation. In addition to better pricing, Mini-Circuits just has nicer folks. Pasternack once actually made one of my former admins weep. She had never been so mistreated by a vendor. I've not bought from them in 25 years as a result.
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Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070 On 4/24/2022 12:19, Jim Ford wrote:
Hey, Zen, if you want to buy new 3.5 mm to SMA adaptors, check out Mini-Circuits.? A couple years ago I needed some for work and found the M-C ones about a third the price of rip-off Pasternack.? $60 apiece vs. $180, IIRC, for similar specs.? Can't help you with GR adaptors, though.? Good luck!Jim FordSent from my T-Mobile 4G LTE Device |
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Re: Tek 284 Pulse Gen
Hey, Zen, if you want to buy new 3.5 mm to SMA adaptors, check out Mini-Circuits.? A couple years ago I needed some for work and found the M-C ones about a third the price of rip-off Pasternack.? $60 apiece vs. $180, IIRC, for similar specs.? Can't help you with GR adaptors, though.? Good luck!Jim FordSent from my T-Mobile 4G LTE Device
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-------- Original message --------From: Zentronics42@... Date: 4/24/22 11:14 AM (GMT-08:00) To: [email protected] Subject: Re: [TekScopes] Tek 284 Pulse Gen I don¡¯t want to spam the list, But I will put it out there since it has been a while. I have video content up on you tube specializing in restoration repair and alignment of test equipment in general however it is mostly Tektronix replated content. I am the owner of the "Zenwizard Studios" YouTube channel.? I have also added links to the videos on the Tekwiki under the specific pages as well. In channel related news I am always looking for project units to put in front of the lens so If any one has anything they are willing to parts ways with let me know I am always interested. I have a moderately specified calibration lab at my disposal, though it is a bit noisy. In terms of the 284 I am working on getting some high frequency couplers and cables in to the lab because I need to do an alignment video on the 284. But here is the info:The only REALLY critical part in the unit is D180. If that is bad you will need a parts doner. I have tried some of the Russian TD¡¯s in place and it is true they will pulse I have not yet achieved the rise time of the speced part. I have found a company that will made replacements D180¡¯s however they were special order LONG wait time and $250.00 US Each. The air line is a VERY strange beast and there are some faults in there that I get in to in the videos ¡°drifty resisters¡±. But the physical working space is quite tight. Especially with the funky back termination resister assembly. I do not have ANY of the required gear to align the unit in the lab however I have easer to use and more modern equivalents. DSA602A and an 11801C with a 12Ghz plugin and a good frequency counter. I need to 3.5mm to SMA converters as well as a GR->SMA to get the video going. So the alignment should be a LOT easer than the documentation. It calls for 500 series era instruments. Channel Link - specific content including D180 testing I can be of assistance, please let me knowZen-----Original Message-----From: [email protected] <[email protected]> On Behalf Of JRNSent: Sunday, April 24, 2022 1:34 PMTo: TekScopes@...: Re: [TekScopes] Tek 284 Pulse GenZen,can you please post the info here, so that everyone can benefit?Thank you very much.
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Re: Tek 284 Pulse Gen
Thanks,
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More is on the way. Zen -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of JRN Sent: Sunday, April 24, 2022 2:46 PM To: [email protected] Subject: Re: [TekScopes] Tek 284 Pulse Gen Zen, I like your videos and I think you do it well. |
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Re: Tek 284 Pulse Gen
I don¡¯t want to spam the list, But I will put it out there since it has been a while. I have video content up on you tube specializing in restoration repair and alignment of test equipment in general however it is mostly Tektronix replated content. I am the owner of the "Zenwizard Studios" YouTube channel. I have also added links to the videos on the Tekwiki under the specific pages as well. In channel related news I am always looking for project units to put in front of the lens so If any one has anything they are willing to parts ways with let me know I am always interested. I have a moderately specified calibration lab at my disposal, though it is a bit noisy.
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In terms of the 284 I am working on getting some high frequency couplers and cables in to the lab because I need to do an alignment video on the 284. But here is the info: The only REALLY critical part in the unit is D180. If that is bad you will need a parts doner. I have tried some of the Russian TD¡¯s in place and it is true they will pulse I have not yet achieved the rise time of the speced part. I have found a company that will made replacements D180¡¯s however they were special order LONG wait time and $250.00 US Each. The air line is a VERY strange beast and there are some faults in there that I get in to in the videos ¡°drifty resisters¡±. But the physical working space is quite tight. Especially with the funky back termination resister assembly. I do not have ANY of the required gear to align the unit in the lab however I have easer to use and more modern equivalents. DSA602A and an 11801C with a 12Ghz plugin and a good frequency counter. I need to 3.5mm to SMA converters as well as a GR->SMA to get the video going. So the alignment should be a LOT easer than the documentation. It calls for 500 series era instruments. Channel Link - 284 specific content including D180 testing If I can be of assistance, please let me know Zen -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of JRN Sent: Sunday, April 24, 2022 1:34 PM To: [email protected] Subject: Re: [TekScopes] Tek 284 Pulse Gen Zen, can you please post the info here, so that everyone can benefit? Thank you very much. |
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Re: Tek 2232 Scope
I've seen somebody on the eevblog forums had the same failure, he ended up
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soldering the wires directly to the board underneath. On Mon, Apr 25, 2022 at 1:08 AM Harrison <buma7@...> wrote:
Picked up a Tektronix 2232 scope at a Club auction recently. It has a dot |
Jared Cabot
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