Re: Wanted 067-0681-01 Tunnel Diode Pulser by new member
Please put the link here also.
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John Griessen <john@...>
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#148133
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Re: Wanted 067-0681-01 Tunnel Diode Pulser by new member
Hi Craig, You can easily build one in just a few hours. The only challenge is obtaining the right tunnel diode (eBay), mounting it (use conductive epoxy), and confirming the rise time is within spec
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Jeff Davis <n0dyjeff@...>
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#148132
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Wanted 067-0681-01 Tunnel Diode Pulser by new member
Looking for a working condition Tektronix 067-0681-01 Tunnel Diode Pulser for doing the Cal 6 on a 2400 series scope. I have all other tools but am missing this tool to complete the full calibration
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Craig Cramb
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#148131
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Re: vintageTEK Museum Microfiche FINANCIAL help
Got it. I donated $25. Thanks for the pointers and of course, once again, for everyone's help on this forum for the last year. I'm a newcomer to the space and am somewhat overwhelmed by the generosity
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David Berlind
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#148130
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Re: 180A Time Mark Generator
Sorry for not replying sooner Tom, but yeah, they appear to be the same ones. A fellow Tekscopes member, Dave Wise, is sending me three of the mounts. Didn't figure McMaster would have them, so I
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Jerome D Leach
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#148129
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Re: vintageTEK Museum Microfiche FINANCIAL help
The home page, blog, and YouCaring site all say that monies donated above the goal will help to improve the infrastructure for the scanner. This would be improved networking, new computer, and new
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Dave Brown
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#148128
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Using a Tek sampling head
I have much enjoyed the recent discussion here about the 7T11/7S11/7S12 sampling plugins and have learned a lot from the contributions. I have a long-term quest to get my Soviet Ya4S-100/Ya4S-101
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cmjones01
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#148127
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Re: vintageTEK Museum Microfiche FINANCIAL help
Necessary: No Appreciated: Yes
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TomC
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#148126
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Re: using scope channel 1 and channel 2 invert and add functions vs floating DUT
Harvey, thanks for your example. I do somewhat the same with a voltmeter in respect to measuring voltage drop/gain rather than doing the math, I can get higher resolution too since the decimal moves
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[email protected]
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#148125
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Re: vintageTEK Museum Microfiche FINANCIAL help
Thanks... I just finally had a chance to go to the VintageTek home page and it says the goal has already been reached. So, I'm trying to ascertain whether a donation is still necessary?
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David Berlind
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#148124
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SOLD OUT Tektronix Stuff for Sale
SOLD OUT
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Panos
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#148123
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Re: using scope channel 1 and channel 2 invert and add functions vs floating DUT
Jeff, thanks for the example. A question, I believe I've seen with this type amp, push-pull IIRC, where there is a common 'center' rail, where that voltage is 0, and there is a negative voltage for
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[email protected]
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#148122
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Re: WTB - Front Cover For 485 Portable Scope
I have a cover for my recently purchased 2213A- I tried not to reveal my delight to the seller :-) Anyone know what other scopes it would fit? Measures about 13x5.25 inches. Not sure I'd want to part
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Keith Ostertag
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#148121
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Re: Test devices to check out new scopes??
Thanks to all who responded to my question. Yes, I had in mind the waveform generator and not the LOGO generator. Reasonable cost is in my mind is less than $100. They are now hard to find the
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Marvin Moss
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#148120
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Re: 7a26 C130 (input compensation)
I'm using a pg506 and adjusting the trimmer right next to C134 the schematic has a pretty clear picture. Albert Otten 3:53 am #148118 In theory with a 10X probe the sensitivity of the front corner
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Brendan
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#148119
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Edited
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Re: 7a26 C130 (input compensation)
In theory with a 10X probe the sensitivity of the front corner amplification is nearly doubled compared to using a normalizer. So don't expect to see more effect with a normalizer. Are you sure you
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Albert Otten
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#148118
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Re: Special Tek resistor needed
Send me a picture, Morris-if you can. Just need something to roughly ID them. I have a box of old 535/545 bits and pieces I nearly tossed recently but conscience got the better of me (fortunately)-
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Dave Brown
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#148117
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Special Tek resistor needed
Hi all, I am in need of the two ¡°Graham Cracker¡± resistors for the vertical amplifier of a 535A. They are 1.3K with two taps. If anyone has a couple of spares or a 535A carcass that can be a
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Morris Odell
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#148116
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Re: Test devices to check out new scopes??
I have one of those as well, but I think I paid more than $40, but much less than the outrageous price.? The QAM is interesting on an analog scope; I don't recall trying it on a digital scope.? My
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Jeff Woolsey
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#148115
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Re: Test devices to check out new scopes??
Try searching the group files and past messages for the test circuits.? There should be at least two schematics available, because I built one of them, and almost built the other.? I think the one I
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Dave Seiter
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#148114
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