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Re: Test devices to check out new scopes??
Renee,
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That is not one of these test boards Marvin is looking for. That is something new that the head of the museum designed. I believe it uses an Arduino to generate the Tek logo. Dennis Tillman W7PF -----Original Message----- -- Dennis Tillman W7PF TekScopes Moderator |
Re: Test devices to check out new scopes??
Hi Dennis, The PCB would have to be pried from my Cold, Dead Hand. They are also a work of Art. Ironically, most of my scopes cannot show what the Demo PCB puts out ! Have seen some on EBAY. Surprisingly the unit is "easy" to make with the modern parts they use. Maybe Tek still has them, even for sale , though I got mine for free during one of their scope-sale pushes. They may make the schematic available. Did not know they made different models. Jon B..,
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Re: Strange Tek part Numbers in an AM503B. Can anyone identify them
3) Finally I have what looks to be a specialized microprocessor (wild assHi Dennis, Those daculators are in all of the later TDS500 TDS600, and all of the TDS700 scopes. 3 per unit. Pictures: Google for the TDS520B service manual with the schematics and you'll see how they're used. It's a DAC with 16 analog outputs. Schematic is on page 275. Do a text search for the word daculator in the manual for some theory. |
Re: Test devices to check out new scopes??
Hi Marvin-
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evil bay has one for about $30, says Tektronix not sure but the tek museum may have possibilities hiding in microfiche ¸é±ð²Ô¨¦±ð, K6FSB On 2018-05-19 08:56 AM, Dennis Tillman W7PF wrote:
Hi Marvin, |
Re: WTB - Front Cover For 485 Portable Scope
Malcolm S
Sadly, I've been looking for a cover for a 454A myself for a while now with
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zero success. It seems clear that there are many, many more 'scopes out there than front covers that fit them. I have, however noticed that people selling "just" the front covers on auction sites often list them by physical dimensions (in inches) rather than specific model number. Hope this helps. On Fri, May 18, 2018 at 5:41 PM, Mike Harmon <mharmon@...> wrote:
Does anyone have a front cover for a 485 portable scope that's surplus to |
Re: Test devices to check out new scopes??
Hi Marvin,
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Over the years Tek made several of these marketing demonstration boards. I have seen at least 4 or 5. There are probably many more. Each was specifically designed to demonstrate some feature or features of the "newest" line of scopes at the time, or to show how much better the Tek scope was compared to the competition. So the first thing you need to do is identify what scope, or scope product line, you have. Then you need to hope Tek made one of these demo boards for your scope. You need to find someone who has one of these that they are willing to part with. One more thing you need to specify is what your idea of "reasonable cost" is. That may be the stickiest problem in locating one of these. Dennis Tillman W7PF -----Original Message----- -- Dennis Tillman W7PF TekScopes Moderator |
Test devices to check out new scopes??
Tek used to supply little PCB's with various circuits to test out and let you try out new scopes.
They had triggering experiments and other waveform generators to give you some experiencce with new scopes. My question is: Does anyone have any of these that they would be willing to part with for a reasonable cost so I could get one to have for my Tek scopes? Thanks, Marvin |
Re: Strange Tek part Numbers in an AM503B. Can anyone identify them
I will try to remember how it all turned out the meetings went on and on
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and on the explosion of programmable devices not just proms was an issue the old timers could not grasp and there was a lot of discussion about the part number system at the same time. Some of the meetings were not pretty many references to suggesting certain people should retire we're brought up from time to time. On Sat, May 19, 2018, 4:45 AM zenith5106 <hahi@...> wrote:
On Fri, May 18, 2018 at 11:27 pm, Dennis Tillman W7PF wrote:parts |
Re: WTB - Front Cover For 485 Portable Scope
I had two 485s (I sold them awhile back). I found a cover for each; it took me many years to find them. They are very rare. One was listed with only it's dimensions. The cover for the 485 has no markings that indicate on what 'scope it goes.
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DaveD On 5/18/2018 7:03 PM, Reed Dickinson wrote:
Hi Mike: |
Re: about me
What is your email address?
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akhilaadepu143@... or rajuadepu009@... Just a cautious curiosity. 73 de VU2UT On Sat, May 19, 2018 at 3:51 AM, Jeff Urban <JURB6006@...> wrote:
At the bottom of every post there is a button - "Reply". Clicking that --
One of those ... ... |
Re: Strange Tek part Numbers in an AM503B. Can anyone identify them
On Fri, May 18, 2018 at 11:27 pm, Dennis Tillman W7PF wrote:
Only found a brief description of the first two: 160-9569-02: Processor (probably with an internal F/W ROM) 165-2456-00: Micro circuit, hybrid These are used only in AM503B and AM5030 I10412-01 is probably 156-6224-00 which was replaced by 156-6224-01 which equals I10412-04 and is: ±õ°ä,°ä°¿±·³Õ·¡¸é°Õ·¡¸é:°ä²Ñ°¿³§,¶Ù/´¡,12¨Cµþ±õ°Õ,¶Ù´¡°ä±«³¢´¡°Õ°¿¸é It is used also in most of the original TDS's plus a few other instruments. /H?kan |
Re: Strange Tek part Numbers in an AM503B. Can anyone identify them
A quick GOOGLE search shows several Tek hybrids which have 165- part numbers.
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¡°The snake which cannot cast its skin has to die.¡±- Friedrich Nietzsche -----Original Message-----
From: "Erik Hultine" [erik@...] Date: 19/05/2018 04:20 To: [email protected], dennis@... Subject: Re: [TekScopes] Strange Tek part Numbers in an AM503B. Can anyone identify them 160- were proms, ~1984 the available numbers were almost used up. 165- is probably a continuation. Pete Lancashire would know more and will most likely respond. Erik ¡°The snake which cannot cast its skin has to die.¡±- Friedrich Nietzsche -----Original Message----- From: "Dennis Tillman W7PF" [dennis@...] Date: 18/05/2018 23:29 To: [email protected] Subject: Re: [TekScopes] Strange Tek part Numbers in an AM503B. Can anyone identify them My goal is to unlock the secret of how the AM503B works and ultimately to find the schematic, theory of operation, maintenance manual, etc. so we can finally fix the plugins. I am looking into the unusual parts in them at the moment and these 3 parts are the most puzzling. 1) 160-9569-02. My wild guess is it is a PROM holding a program. For what processor it might be I have no clue. 2) 165-2456-00. This is a Hypcon package from MAXTEK. I would guess it is the ASIC running everything that isn't in discrete transistors or TTL glue logic. I cannot find any reference to these two entire categories of parts: I have no parts catalogs that show 160-xxxx-yy or 165-xxxx-yy parts. I don't even know what a 160 or 165 part could be. Not even a wild guess. I don't even know if there is a catalog of those kinds of parts. Does anyone know? 3) Finally I have what looks to be a specialized microprocessor (wild ass guess). This would be an IMP (International Microelectronic Products) I10412-01. It is a 28 pin SOIC. They are no longer in business as near as I can tell. That isn't a Tek part. It is not a company I ever heard of. There is virtually no reference to it anywhere on the internet except it might be called a "daculator" (that is not a misprint as far as I know) and it might be related to a Tek 156-6224-00. All Microprocessor, TTL, special function, etc, etc chips start with 156-xxxx-yy but my Tek IC parts catalog stops around 156-3000-yy so I have no information on it. |
Re: Strange Tek part Numbers in an AM503B. Can anyone identify them
160- were proms, ~1984 the available numbers were almost used up. 165- is probably a continuation.
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Pete Lancashire would know more and will most likely respond. Erik ¡°The snake which cannot cast its skin has to die.¡±- Friedrich Nietzsche -----Original Message-----
From: "Dennis Tillman W7PF" [dennis@...] Date: 18/05/2018 23:29 To: [email protected] Subject: Re: [TekScopes] Strange Tek part Numbers in an AM503B. Can anyone identify them My goal is to unlock the secret of how the AM503B works and ultimately to find the schematic, theory of operation, maintenance manual, etc. so we can finally fix the plugins. I am looking into the unusual parts in them at the moment and these 3 parts are the most puzzling. 1) 160-9569-02. My wild guess is it is a PROM holding a program. For what processor it might be I have no clue. 2) 165-2456-00. This is a Hypcon package from MAXTEK. I would guess it is the ASIC running everything that isn't in discrete transistors or TTL glue logic. I cannot find any reference to these two entire categories of parts: I have no parts catalogs that show 160-xxxx-yy or 165-xxxx-yy parts. I don't even know what a 160 or 165 part could be. Not even a wild guess. I don't even know if there is a catalog of those kinds of parts. Does anyone know? 3) Finally I have what looks to be a specialized microprocessor (wild ass guess). This would be an IMP (International Microelectronic Products) I10412-01. It is a 28 pin SOIC. They are no longer in business as near as I can tell. That isn't a Tek part. It is not a company I ever heard of. There is virtually no reference to it anywhere on the internet except it might be called a "daculator" (that is not a misprint as far as I know) and it might be related to a Tek 156-6224-00. All Microprocessor, TTL, special function, etc, etc chips start with 156-xxxx-yy but my Tek IC parts catalog stops around 156-3000-yy so I have no information on it. |
Strange Tek part Numbers in an AM503B. Can anyone identify them
My goal is to unlock the secret of how the AM503B works and ultimately to
find the schematic, theory of operation, maintenance manual, etc. so we can finally fix the plugins. I am looking into the unusual parts in them at the moment and these 3 parts are the most puzzling. 1) 160-9569-02. My wild guess is it is a PROM holding a program. For what processor it might be I have no clue. 2) 165-2456-00. This is a Hypcon package from MAXTEK. I would guess it is the ASIC running everything that isn't in discrete transistors or TTL glue logic. I cannot find any reference to these two entire categories of parts: I have no parts catalogs that show 160-xxxx-yy or 165-xxxx-yy parts. I don't even know what a 160 or 165 part could be. Not even a wild guess. I don't even know if there is a catalog of those kinds of parts. Does anyone know? 3) Finally I have what looks to be a specialized microprocessor (wild ass guess). This would be an IMP (International Microelectronic Products) I10412-01. It is a 28 pin SOIC. They are no longer in business as near as I can tell. That isn't a Tek part. It is not a company I ever heard of. There is virtually no reference to it anywhere on the internet except it might be called a "daculator" (that is not a misprint as far as I know) and it might be related to a Tek 156-6224-00. All Microprocessor, TTL, special function, etc, etc chips start with 156-xxxx-yy but my Tek IC parts catalog stops around 156-3000-yy so I have no information on it. |
Re: 7a26 rise time
On Fri, May 18, 2018 at 09:32 am, lop pol wrote:
Fabio. There is no way a simple 33 ohm resistor could cause that... pshhh...Remarkable! I never thought those little resistors could have such an effect, innocent-looking things that they are. Well done for tracking it down, and thank you for posting the result. I'll definitely bear this in mind if I see similar symptoms on my 7A26s. Chris |
Need an SG502 Frequency Dial and Knob
walter shawlee
Anybody have a clean and un-cracked dial and knob for this TM500 sine generator (goes 0.5-5.0) ?
Mine is falling apart, and nothing suitable here as a spare, so I am hoping to find one out in the tek-o-sphere somewhere. also, my main computer exploded (seriously, with an actual bang) so I lost all my email contacts, if you can, please take a moment to email me so I have your info again! any help appreciated, all the best, walter (walter2 -at- sphere.bc.ca) sphere research corp. |
Re: WTB - Front Cover For 485 Portable Scope
Hi Mike:
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I have over 80 of the 485 scopes that I have bought on eBay over the years. Only one came with a front cover and I could not part with it. They do exist but I think hen's teeth are more plentiful. Reed Dickinson On 5/18/2018 3:41 PM, Mike Harmon wrote:
Does anyone have a front cover for a 485 portable scope that's surplus to your needs? |
Re: FYI New In Box TM515 for $98.98 BIN UTAH
Craig Sawyers
That was a genuine steal!Almost my four word-class deals. A NIB very rare 7623B - this was a 7-day auction, and astonishingly no-one bid. So I got it for $100. Or the AA501 distortion analyser for $14 on BIN. My fingers were trembling as I stole that within a minute of it being listed. Or an R7603 - but with a 7L5 with tracking generator for UKP70 on BIN. Similar sweaty finger typing. And finally a 7912HB transient digitizer with plugins for $100. And I bought a NOS digitizer CRT (the internal one, as a spare) for another $50. Craig |
Re: about me
At the bottom of every post there is a button - "Reply". Clicking that gets you a window to type in and if you select the text in the post above it will be quoted and indented in your reply.
I can tell English is not your first language. No problem. Just do the best you can. English is easy to learn by using. What kind of Tek scopes do you have ? We are always curious. |
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