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Re: Tek 577 sells for $256 on eBay
My main interest in a curve tracer would be for tube testing/matching. A few months back, I believe there was discussion of a home-grown 576 fixture for that. For now, one of my upcoming projects is
By David Berlind · #147876 ·
Re: 7M11 copy (Soviet Ya4S-102) delay line performance
My CSA803A has become a 'frankenscope' inspired by Hakan's similar effort, so I can't claim any originality. I bought a scrap 11802 and used the acquisition module from it, which includes the delay
By cmjones01 · #147875 ·
Re: 7T11 sampling timebase - how does it behave?
I'd say the 36-40 pSec tr displayed result is in the right ballpark. If the tr of the pulse and the the sampler are both 25 pSec, then the net would be about 35. If they are both 30 pSec, then it
By Ed Breya · #147874 ·
Re: Tek 577 sells for $256 on eBay
Just chiming in... I would agree with Chuck on this. Some other factors... A 576 is way more complex inside with all the display lighting and control. If something fails, you have a lot more work to
By Kevin Oconnor · #147873 ·
Re: 7T11 sampling timebase - how does it behave?
Hi Dennis, I took a few photographs with current equipment and my previous measurements were largely confirmed. Please refer to the added photographs in the album. Their names indicate what's shown,
By Raymond Domp Frank · #147872 ·
Re: PG502 Failure points?
I remem
By Harvey White · #147871 ·
Re: 7M11 copy (Soviet Ya4S-102) delay line performance
Hey Chris, Tell us about the mod to the CSA803A delay line. What did you do to add the third SMA connector to the delay lines. Is that just the internal end of the line? Thanks, Tom
By Tom Miller · #147870 ·
Re: 7633 readout drift
It's not uncommon. Sometimes you can fix it by turning the wiper back and forth a couple of times, but it can be temporary. Replacement with a quality part is the best way to go about it. In your
By davehouse@... · #147869 ·
TM500 / 5000 Extenders - should I make more?
Hello Tek Heads - I made a bunch of extenders, thank you to those that purchased through my Amazon page or through this group. I hope everyone that bought one is happy with them. I am out of PC
By dnmeeks · #147868 ·
Re: Tek 577 sells for $256 on eBay
In what way would you say 576 is based on the 7000 series ? /H?kan
By zenith5106 · #147867 ·
Re: 7633 readout drift
On Sun, May 13, 2018 at 10:55 pm, lop pol wrote: > > > > lop pol > 11:07 am #147825 > > When powering on the scope from cold the readout is high by about half a > graticule. After 3-5 minutes
By Brendan · #147866 ·
7M11 copy (Soviet Ya4S-102) delay line performance
I made a bit of time today to experiment with one of the Soviet 7000-series plugin copies I got recently. It's the Ya4S-102 delay line, roughly equivalent to the Tek 7M11. Having discovered that N
By cmjones01 · #147865 ·
Re: Tek 577 sells for $256 on eBay
The 576 was based on the original 7000 series, and the 577 was based on the modular 5000 series. The 576 was intended to do everything discrete semiconductor wise. The 577 was geared towards low
By Chuck Harris <cfharris@...> · #147864 ·
PG502 Failure points?
I have acquired a TM506 with 7 plug ins PG506,TG501,DC503A,PG502,SG503,SG504 and DM502. All the units seem to work except the PG502. Looking for some guidance as to the likely failure points of this
Tek 577 sells for $256 on eBay
I saw this 577 Curve Tracer show up on eBay and it sold for $256. Not sure if that power-up trace indicates an issue (not having had or operated a curve tracer, I don't know what the power-up trace
Re: Automatic Brightness Control : was it ever implemented ??
Auto intensity on the 2215 is based on gate dutycycle, R/C averaged. It's helpful. Ed, k1ggi
By k1ggi · #147861 ·
Re: Automatic Brightness Control : was it ever implemented ??
Seems to me, that all you would need to know is beam velocity vs beam current. Intensity is an integral function of beam velocity and beam current. So, it would take a circuit that took the
By Chuck Harris <cfharris@...> · #147860 ·
Re: Upgraded, stub tuned, Tektronix SG-504 leveling head back online for a last run
$119.50 shipped snail mail.
By Ancel · #147859 ·
Re: Help using this Group
I find this to be easy... I receive each post as an individual email, not a daily digest. I use an email client (Thunderbird or Seamonkey) that displays messages in their threads, as a tree based on
By Tom Gardner · #147858 ·
Re: 7633 readout drift
lop pol 11:07 am #147825 When powering on the scope from cold the readout is high by about half a graticule. After 3-5 minutes of warm up the readout drifts to the center of the top graticule.
By Brendan · #147857 ·