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Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
Hi,
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that's interesting - I long suspected that the various "editions" of eBay are quite different under the hood. I wouldn't be surprised if their main site (ebay.com) is much more well maintained and monitored compared to their regional sites (ebay.de, ebay.fr etc.). Here (Germany/Europe) paying with wire transfer is quite common and until this change, you could choose to offer payment with e.g. Paypal and wire transfer. For wire transfers, eBay would just give buyers the IBAN set in the account settings to the buyer. So the buyer would literally just wire the money directly to you. I understand this is unusual in the US, but wire transfers are fast and free here, so it's not uncommon. Someone having the account number, or IBAN, can't really do anything besides wiring you more money, so it's not a security problem. When paying with PayPal, the buyer would get your PayPal email as well (and vice versa), so at that point nobody can really keep the two of you from just sending each other emails with whatever. Cheers, Marian Am Mi., 28. Apr. 2021 um 01:03 Uhr schrieb - <rrrr6789@...>: Marian, |
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Re: Tektronix Probe Replacement Parts and Accessories
Dennis,?That is very handy, thank you for taking the time and for sharing!--EricSent from my Galaxy
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-------- Original message --------From: Dennis Tillman W7pF <dennis@...> Date: 4/30/21 10:06 AM (GMT-06:00) To: [email protected] Subject: [TekScopes] Tektronix Probe Replacement Parts and Accessories I assembled together a PDF for the Probe Replacement Parts and Accessoriesfor most of the Tek Probes.It has pictures and part numbers for all the parts and accessories of the 5mm (Miniature), 3.5 mm (Compact), and 2.5 mm (Subminiature) probes. In addition, it lists the replacement part numbers of the parts in the otheractive and passive probes.I didn't search through every catalog from the 1950s to the present day soit does not include every probe, but it should cover 85% to 90% of the Tekprobes in common use today.It is located in the Files section of the TekScopes archive at:/g/TekScopes/files/Tektronix%20Probe%20Replacement%20Parts%20and%20Accessories.pdfDennis Tillman W7pF
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File /Tektronix Probe Replacement Parts and Accessories.pdf uploaded
#file-notice
[email protected] Notification
The following files have been uploaded to the Files area of the [email protected] group. By: Dennis Tillman W7pF <dennis@...> Description: |
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Tektronix Probe Replacement Parts and Accessories
I assembled together a PDF for the Probe Replacement Parts and Accessories
for most of the Tek Probes. It has pictures and part numbers for all the parts and accessories of the 5 mm (Miniature), 3.5 mm (Compact), and 2.5 mm (Subminiature) probes. In addition, it lists the replacement part numbers of the parts in the other active and passive probes. I didn't search through every catalog from the 1950s to the present day so it does not include every probe, but it should cover 85% to 90% of the Tek probes in common use today. It is located in the Files section of the TekScopes archive at: /g/TekScopes/files/Tektronix%20Probe%20Replacement%20Parts% 20and%20Accessories.pdf Dennis Tillman W7pF |
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Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
Hi Daniel et al,
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It always surprises me that people are so easily outraged by changes like this one that eBay has in the works. eBay Inc. is a publically traded company beholden to its stockholders, not to you or me. Their management has to constantly balance the needs of their stockholders, sellers, and buyers while insuring they don't violate the laws and customs of every country they do business in. I don't envy them. Any change they make is bound to anger some of their constituents. We all have the ultimate power to determine if this was a good or bad decision on their part by what we do next. It is simple: Stop using them if you don't like this new policy. I became a member 21 years ago, just 4 years after they started. In my time as a member I can easily see how it evolved. I welcomed some things they did, and I was dismayed by other things. I do not expect it to be the same as it was back then and neither should you. I still find it extremely useful, although not for what I was using it for back then. As they evolve so do I. I have had to accommodate their ever changing rules and requirements so I can continue to take advantage of the amazing marketplace they have created for exchanging goods. In the 25 years since they were founded near the East Bay in San Francisco they have revolutionized buying and selling. I'm certain of one thing: eBay will continue to evolve and stockholders, buyers, and sellers will continue to complain about it until they vote with their feet. It sounds like some of you feel entitled to be treated a certain way by eBay and you are angry that you have made an incorrect assumption. Welcome to the club. I was angry when I moved out on my own and my mom didn't come over to my apartment to vacuum, do my laundry, and continue cooking for me. Eventually I got over it, I hope you do too. eBay still has plenty to offer if you know what to look for and how to find bargains. I appreciate the members who are offering suggestions on how to accommodate the latest change coming from eBay. The alternative, complaining about the changes, doesn't help. eBay does care about you (in the big sense) but they have hundreds of millions of stockholders, sellers, and buyers to also care about. When you realize how insignificant you are it might help you to understand that complaining is a waste of time. Your choice is to evolve with eBay or vote with your feet by leaving. Dennis Tillman W7pF -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Daniel Koller via groups.io Sent: Tuesday, April 27, 2021 11:26 AM <SNIPS> Hi folks, this is OFF TOPIC because it's about e-bay, but on the other hand, with the exception of my older gear, it's just about the only way I get *any* Tek or HP gear these days. So, with apologies if it drags on too long and in the wrong direction,.... I got a message from e-bay that explains they are changing their payment structure. According to that, sellers will need to directly link a bank account to e-bay so that they can receive payments directly from buyers. By May 21, if you do not link a bank account to e-bay, they will not allow new postings! So, the implication is that Paypal is no longer going to work. I don't know about folks here, but I suspect, like me, they are a bit older, financially conservative, and are loathe to link a personal bank account to e-bay. To this day I do not have my paypal account "linked" to my bank account. I can have all my on-line accounts hacked, but none of them have any access to my bank account. -- Dennis Tillman W7pF TekScopes Moderator |
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Re: CRT's
Hi Bill,
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Wrong Bill. It came from Bill Higdon, not you. Dennis -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Bill Riches via groups.io Sent: Thursday, April 29, 2021 6:54 AM To: [email protected]; [email protected] Subject: Re: [TekScopes] CRT's To All - I did not post that link. Dont know where that came from. i have not posted anythin to this list for a few months. 73, Bill WA2DVU On Wednesday, April 28, 2021, 07:57:25 PM EDT, Dennis Tillman W7pF <dennis@...> wrote: Hi Bill, If you are going to post a suspicious link please be sure to say what it is for. I can confirm (for Bill) that it is not suspicious after I checked it out. It is a box of CRTs in the Portland area. At least one or two of them look like TV CRTs. The others are hard to tell. They appear to be old. Dennis Tillman W7pF -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bill Higdon via groups.io Sent: Wednesday, April 28, 2021 12:40 PM To: [email protected] Subject: [TekScopes] CRT's Say this earlier -- Dennis Tillman W7pF TekScopes Moderator -- Dennis Tillman W7pF TekScopes Moderator |
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TDS 380 Attenuator Resistor Replacement Specs
Hi Folks. New member, first post . . . I recently picked up a couple of new to me Tektronix scopes to replace my Hitachi V212. The 2236 is up an running beautifully after some cleaning, but the TDS380 has a (hopefully) small issue: No input on CH1. I've traced the problem down to what looks like a burned 50 ohm thick film resistor on the input of the attenuator board between the BNC and one of the capacitors on the board. (not quite sure how to post photos here yet but hopefully this link works: /g/TekScopes/photo/263498/3215960?p=Created,,,20,2,0,0)
I'm thinking I can simply solder a 50 ohm resistor between the BNC connector and the SMD capacitor that the original resistor links (the larger capacitor at the end of the first relay in the photo) . Any thoughts about doing this and what power rating the resistor should be? Thanks. Rich |
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Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
Amazon in Europe has the ability to link your account as the only
payment method, and it works perfectly well for variable, non-recurring payments of all sorts of amounts. On Thu, Apr 29, 2021 at 9:02 AM Szabolcs Szigeti <szigiszabolcs@...> wrote:
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Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
Hi Jeff,
On 28. Apr 2021, at 22:28, Jeff Dutky <jeff.dutky@...> wrote:thats the most likely explanation I heard so far as to why they want to stop going via a credit card. The credit card company charge for their services... So for Ebay this is essentially a move to save money. But also, as has Harvey pointed out, you can dispute the amount taken on your credit card and then Ebay would have to prove something. Thats also a cost factor, but authorising Ebay to withdraw whatever sum they like from my bank account is going too far IMHO. I had my phone provider authorised many years ago, when one day they charged 10x too much due to some mistake in their accounting system. Although they did correct it quickly, for me that was the trigger to ban all services from my account where the amount is not fixed. I wonder why banks don't offer something like a pre-authorization, where you authorise once but get a message you have to confirm before the transfer is actually carried out. That way it would still be quite comfortable as you do not have to remember, but you can withhold the transfer if deemed incorrect. cheers Martin |
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Re: Recapping Tektronix 2465
I received the material from Mouser, for those interested I report the list of what I found available and I ordered:
/g/TekScopes/files/mouser%20TEK2465.xlsx More or less everything corresponds to what was found on this group, except the 7 ohm NTC, I found one that should be fine with code 995-SL157R005-L. However I did not use it because the 2 original NTCs measured with the ohmmeter, report the correct resistance. For those like me who are not familiar with the Mouser catalog, I think I can say that, for example, the codes 647-UHE1E101MED, 647-UHE1E101MED1TA, 647-UHE1E101MED1TD correspond to the same component but in bulk, or taped etc. I started working with the A2-A3 boards and I have some questions, if anyone would like to answer: - I found R1016 swollen, then unsoldering it broke, what to replace it with? A common metal or ceramic film? - I followed the method of searching for the shielded outer end of non-polarized capacitors with the oscilloscope but for several specimens I don't get any difference, or uncertain differences by inverting the connections on the pins. Yet the test clearly works by trying some old capacitors found in my drawers. Does this mean an error on my part, or that for those components the direction of insertion is indifferent? - Still speaking of non-polarized capacitors, in the wiring diagram does the shielded outer end correspond to the curved line of the capacitor symbol? Thank you for any information already received and in the future and I apologize for any errors but I'm using google translate.... Gio |
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Tek DSA8200 help wanted
I have a Tek DSA8200 w/ 2 TDR modules. It was retired from service qualifying HDMI cables. The HDMI standards changed and now you need a 4 port VNA to test HDMI cables. In any case when I contacted Tek about getting the 80SJNB package they told me it was obsolete and I needed to get a DSA8300. The software would not work on the DSA8200 any more??? Once they figured out there was no unlimited checkbook at hand they moved on.
At this point I would like to explore how to get the 80SJNB software package on this unit if its possible. Anyone with experiece dealing with this could probably give me some insights. Also about the Iconnect package which again was not available. How does software become no longer made??? To be sure I'm not ready to spend $$$ to get this all running on my obsolete hardware. Any advice? Or maybe I'll just sell it. |
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Re: 465M
Here is an update:
I checked the tube socket and it is clean as a whistle! The U550 in this scope failed a while back in that, the tripler section started blowing the fuse. Since this is not available anymore, I created my own U550. I did it in a way that the tripler is removable from the rest of it. That contraption of mine worked for almost a year or more till it blew the fuse last week. It only blows if the anode is connected. Assuming that my tripler has gone bad, for whatever it is worth, I rigged another 3 diode/3 cap tripler and made sure the 10kV is there and then connected the anode. The fuse blew again. It tells me that my original tripler is still good. The next thing was to make sure the rest of the U550 is not gone bad. So, I hooked up the original TEK U550 (without the EHT connection) and hooked up the external tripler. Again the 10kV is good but no sooner the anode is plugged in, the fuse blows. This made me think the tube might have gone bad and is drawing too much current. Luckily for me, I have another spare tube. So, I hooked that up. Well, it is the same result! So, now I am lost. It is clearly too much current in the anode circuit but what is causing it? I read through the HV section in the service manual and can't say it is pointing me to anything in particular. I have checked the transistors in the HV regulator and HV oscillator etc. But did not find any issue. There still could be a diode that breaks down on load while showing good on the meter. The only major item I cannot check by replacing is the HV transformer as I don't have one. But if that was bad, wouldn't it blow the fuse even if the anode is not connected? Also, it does generate the 10kV. Unless, it is shorting under load, what else can go bad? |
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Re: Tektronix HC100 plotter on eBay
The shipping has now gone up. It's now $59.70. I used to want one of
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these printers and they were difficult to find but I think I'm over that now so I'll pass. But FWIW it appears to have both a Centronics and an HP-IB interface. On Thu, Apr 29, 2021 at 6:31 PM Keith <coolblueglow@...> wrote:
Not sure how popular these HC100 still are - but the price is right... |
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Re: Tektronix HC100 plotter on eBay
On 2021-04-29 6:31 p.m., Keith wrote:
Not sure how popular these HC100 still are - but the price is right... $15.00 plus shipping at $45.I'm looking for the GPIB interface board to one. Can swap for the RS232. Getting pens for these is pretty challenging, they're special for this plotter and the way it's designed you can't really use anything else. --Toby Cheers, |
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Re: 7A16A with an unknown modification MOD515D
For many years test equipment had minimal safety requirements. Newer equipment often has "sacrificial" resistors in parts of the circuit that also function as fuses. They often run hot and fail without reason. Usually the prints will have a label on them, calling them a "Critical Safety Component". Could the resistor you see overheating be one of these?
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? Bruce Gentry? KA2IVY On 4/29/21 17:05, Mark Vincent wrote:
Mark, |
Richard Peterson
Martin
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