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Another horror story
Denis Cobley
Had a job about 10 years ago which was much worse.
We were sent a 492 & TM5006 mainframe full of plug-in's. It have been in a service car - a station wagon (estate in the UK) and the Tech had run into a tree. The 2 items had become missiles and punched through the tech. The units were full of bits of meat and congealed blood but the company wanted to recover the instruments. I had the most unpleasant job of stripping and cleaning every part of the units and getting them operational. The smell was not good - not something you wanted to be doing just after lunch. Both instruments are back in service and looking for their next victim. There is a lesson here for those who do not secure heavy equipment in cars or vans. I also had one just like the other one - tailgate flew open around a corner and the scope made a break for it! Had a unit sent back to Tek in Beaverton once - run over by a 747 front wheel - ended up about 1" thick - Tek said it was my problem as once it left them I carried the risk. Of course the carrier said it was also not their problem either so we had to carry the can on that one with the customer. Strange things happen in this world. Regards Denis Cobley |
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Re: I couldn't stop the tears...
Richard W. Solomon
Fell off !!! It looks like a semi ran over it.
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73, Dick, W1KSZ -----Original Message-----
From: Greyhawk [mailto:greyhawkeng@...] Sent: Monday, March 01, 2004 4:12 PM To: djconniff@...; TekScopes@... Subject: Re: [TekScopes] I couldn't stop the tears... Hangin' Is Too Good For Him Greyhawk ----- Original Message ----- From: Darrin Conniff To: TekScopes@... Sent: Monday, March 01, 2004 15:58 Subject: [TekScopes] I couldn't stop the tears... Hello all (sniffle). Oh, the humanity of it! How can they show such graphic, gratuitous violence en ebay now? Check out #3800482167 on ebay. Make sure you are sitting down when you go to look at it. Get the rope! Darrin ---------------------------------------------------------------------------- -- Yahoo! Groups Links a.. To visit your group on the web, go to: b.. To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links |
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Re: I couldn't stop the tears...
Dennis Tillman
I owned one of these. The PC boards are all plated with gold.
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I used to ppen it up and show the gold in it to all my friends. You can even see it in the pictures. This was one of the last scopes where Tek did this. It was made before gold skyrocketed in the early 70's. Someone with a sharp eye is going to buy this and scrap it for the gold. -----Original Message-----
From: Greyhawk [mailto:greyhawkeng@...] Sent: Monday, March 01, 2004 1:12 PM To: djconniff@...; TekScopes@... Subject: Re: [TekScopes] I couldn't stop the tears... Hangin' Is Too Good For Him Greyhawk ----- Original Message ----- From: Darrin Conniff To: TekScopes@... Sent: Monday, March 01, 2004 15:58 Subject: [TekScopes] I couldn't stop the tears... Hello all (sniffle). Oh, the humanity of it! How can they show such graphic, gratuitous violence en ebay now? Check out #3800482167 on ebay. Make sure you are sitting down when you go to look at it. Get the rope! Darrin ---------------------------------------------------------------------------- -- Yahoo! Groups Links a.. To visit your group on the web, go to: b.. To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links |
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Re: I couldn't stop the tears...
Greyhawk
Hangin' Is Too Good For Him
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Greyhawk ----- Original Message -----
From: Darrin Conniff To: TekScopes@... Sent: Monday, March 01, 2004 15:58 Subject: [TekScopes] I couldn't stop the tears... Hello all (sniffle). Oh, the humanity of it! How can they show such graphic, gratuitous violence en ebay now? Check out #3800482167 on ebay. Make sure you are sitting down when you go to look at it. Get the rope! Darrin ------------------------------------------------------------------------------ Yahoo! Groups Links a.. To visit your group on the web, go to: b.. To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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Tunnel Diode for 1S1
Gregor Lasser
Hello!
I'm new to the list and I have quite a trouble with a 1S1 Sampling plug-in I bought at ebay! While I was cleaning the plug-in I found a Tunnel Diode with one of its "legs" broken off. I unsoldered it just to see that the second leg was also defective. Does anyone know where to find this tunnel diode? It is D304 in the 1S1, Manual says: D304 152-0214-00 TD252 4,7mA . Is there any source for this diode, or is there a possible substitution? Thank you all in advance Gregor Lasser |
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Re: 7D20 RAMS
What did you mean, Don? Before or after Foster's?
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Regards Miroslav Pokorni ----- Original Message -----
From: "jeans" <jeans@...> To: "Brian Goldsmith" <brian.goldsmith@...> Cc: "Miroslav Pokorni" <mpokorni2000@...>; <TekScopes@...>; "pe1fbo" <sh331182@...> Sent: Monday, March 01, 2004 6:04 AM Subject: Re: [TekScopes] 7D20 RAMS Yeah Brian, but would you care?? |
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Tek Custom hybrids
Craig Sawyers
Hi all
Mark Kahrs has a really useful list on his site of custom Tek hybrids and which 7xxx series scope and plug-in they are used in ( ). I've added a bunch of information to this on instruments that I have the manuals for. I've passed that to Mark so that when he gets a spare picosecond his site can be updated. If anyone is interested in a copy in the meantime, let me know. Craig |
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Re: 7D20 RAMS
jeans
Yeah Brian, but would you care??
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Don Black. Brian Goldsmith wrote: ----- Original Message ----- |
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Re: Texas swap meets?
jeans
You don't want to make a profit. do you??
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Don Black. Darrin Conniff wrote: Hello, |
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File - Posting Rules
Please edit any posts/replies to the list to
minimize quoted material to that required for continuity. Please do not send personal replies to the list. List replies go to the original sender by default. If you want to also reply to the list, use Reply-to-all (or whatever it's called in your mailer), or manually add the TekScopes address. Do this if your reply would be of interest to the list. Otherwise, just reply to the sender. Those congesting the list with with either of the above may have posting rights revoked. Only by following these simple rules will we have a "clean" archive. They also reduce inbox clutter, make digests much nicer to read, improve searches, and reduce the chance of having old messages deleted. If you do not wish to belong to TekScopes, you may unsubscribe by sending an email to TekScopes-unsubscribe@... You may also visit the Yahoo web site to modify your subscriptions: Check out the files, links, and photos sections, and remember, you can search the group's archives from its home page, or when reading messages. The group's home is at: Regards, Michael Dunn Listowner, TekScopes |
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Tek 422 Trace problem
Recently acquired a Tek 422 that may have a problem with the trace
brightness. As the Intensity control is rotated from off (full CCW) to about midrange the trace will increase in brightness, but from mid rotation to full CW, the brightness stays the same and the trace losses focus and has what appears as another trace just slightly shifted to the left. Is this an indication of a weak CRT, or some component in the HV supply? Thanks! |
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manuals needed for DSA602
reteb1
Hi all,
I am new to this group. This week my DSA602 will arrive and I need a bit of your help. I need some manuals. I got the tip to ask on this list for help of Dave DiGiacomo for DSA602 manuals (*). Could someone reference me to Dave ? Or could someone help me or reference me to other manual sources ? I searched in vain in the archive. I am told this DSDA602 is a great gear, but it seems strictly compulsory te use the manuals to enjoy this DSA's full power. In particular to have the DSA computer controlled thru IEEE 488. Thanks, Peter, PE1ECM (*) : 1. " The DSDA 601A & 602A Digitizing Signal Analyzers Tutorial " by Tektronix, part nr 0070-8180-00 2. " Tektronix Pocket Signal Generator " part nr 015-0580-00 3. " Tektronix DSA600 series ( 601/601A/602/602A ) Service Reference " part nr 0070-8184-00 with software 4. " Tektronix DSA601/2 Programming Reference " part nr 070-8182-00 5. " Tektronix DSA601/602 Command Reference " part nr 070-7252-01 6. " Tektronix DSA601/602 User Reference " part nr 070-8181-00 7. any other doc. on the DSA602 Thanks for help ! |
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Re: Recommendations?
Denis Cobley
I would recommend the 2235.
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Cheap, reliable, easy to use and repair if needed. Regards Denis Cobley ----- Original Message -----
From: "John" <NYCSPIRIT@...> To: <TekScopes@...> Sent: Saturday, February 28, 2004 2:10 AM Subject: [TekScopes] Recommendations? I am looking for a good reliable used Tek scope to learn on and use |
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Re: 7D20 RAMS
Brian Goldsmith
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From: "Miroslav Pokorni" I would say, it came after TI fixed flux wicking. Gosh,after two tinnies of Foster's Lager,I certainly cant say that correctly!!!! :-) Brian Goldsmith |
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Re: 7D20 RAMS
I had something similar with my 7D01, except that RAMs were from even lower
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layer of Pleistocene, they were 1 K capacity. Surprisingly, I was able to find RAMs at the local junker store and price was not too unreasonable. It is interesting that sequence of fixing resembled closely what Fred described: first replacement did not work, but second chip did. Then, I put back the original chip and that worked, so I concluded that problem was with those 'low bidder' sockets that Tektronix' accountants liked to buy for instruments that had lot of DIPs. The sockets looked like infamous TI products, but judging from age of the plug-in, I would say, it came after TI fixed flux wicking. Regards Miroslav Pokorni ----- Original Message -----
From: "pe1fbo" <sh331182@...> To: <TekScopes@...> Sent: Sunday, February 29, 2004 6:07 AM Subject: [TekScopes] 7D20 RAMS Hi All, |
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Re: 7D20 RAMS
Robert Morein
4116 RAMs did not have completely standard refresh requirements. The RAMs that fail probably need to work with a different refresh controller.
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----- Original Message -----
From: pe1fbo To: TekScopes@... Sent: Sunday, February 29, 2004 9:07 AM Subject: [TekScopes] 7D20 RAMS Hi All, Today I fixed my 7D20, it had come up with an error, (fail 531). A closer look in the manual pointed to U710, a dynamic RAM (4116) from the prehistoric ages. All RAMS on the memory board where from ITT, date code 8232 and 8237 and had also a white 'TEK' marking. I replaced the bad chip with one from a scrap TEK 9100 logic analyser, also an ITT chip, and made me wonder, because this chip gave me exactly the same error.... So was it perhaps something else ? However a 9100 has 16 4116 so I took an other one, this time an NEC one with a white TEK marking... And this seemed to be working fine. This made me curious and I started to test them all. I found three other ITT chips which were bad, non of the NEC or Mostek chips failed. Could it be that the ITT chips are of inferior quality, or is the chip OK and is this a timing problem in the design of th 7D20 ?. I must say, that the scrap 9100 was also failing due to a bad uP board, the cause is still unknown. Here are the error codes and their chips associated in case you have a similar issue with the RAMS. Dynamic RAMS 4114 521 U910 53 U810 531 U710 532 U610 5321 U510 54 U410 541 U310 542 U210 Static ones 321 U900 4 U800 41 EAROM - Fred de Vries ps look at for a similar case Yahoo! Groups Sponsor ADVERTISEMENT ------------------------------------------------------------------------------ Yahoo! Groups Links a.. To visit your group on the web, go to: b.. To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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Re: Tektronix Parts
Dan Szubra
Hi Jon P.
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This local electronic surplus company in Cleveland OH, has the FND357's in stock per there database (300pcs).Here is their website Best of Luck Dan Szubra P.S I have parts for Tek547 scopes if you know anybody that may be looking -----Original Message-----
From: jdpetrzelka [mailto:j.petrzelka@...] Sent: Sunday, February 29, 2004 1:14 PM To: TekScopes@... Subject: [TekScopes] Tektronix Parts First of all, Thanks to all who steered me to the govt. manuals web-sight last weekend. Today I'm looking for a 7 segment led display, Tek #150-011-01, Fairchild #FND5169 or FND357, and a decoder driver, Tek #156-0379-00 or any substitute, Thanks in advance for any leads,Jon P. ---------------------------------------------------------------------------- -- Yahoo! Groups Links a.. To visit your group on the web, go to: b.. To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. |
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