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Re: I have two Tek manuals I don't think I need
There were people on here recently looking for donations for the cost of scanning a bunch of manuals and making PDFs out if them. I would have kicked in a few bucks but I do not have a credit card, so
By Jeff Urban · #149161 ·
DuraProbe 123 adjustment
i find myself with a Duraprobe 123 100 mHz probe, which is very nice but doesn't say tektronix on it anywhere. It has H and L adjustments which i assume are intended to get rid of the spikes using the
By John Ferguson · #149160 ·
Re: Tek 465 no display
Hi Harvey, I think you (and Dave before) forget here that the supplies are protected by foldback current limiting. In case of a nearly dead short the current will be much smaller than in normal
By Albert Otten · #149159 ·
Re: Agilent keysight HP group
Thanks everyone I just must have missed it or typed it in wrong
By Pete Lancashire · #149158 ·
Re: Agilent keysight HP group
https://groups.yahoo.com/neo/groups/hp_agilent_equipment/info -- Richard Knoppow dickburk@... WB6KBL
By Richard Knoppow · #149157 ·
Re: TDS 380 won't trigger
On Sat, 23 Jun 2018 at 20:45 Gary Appel <garyappel@...> wrote: > Thank you Siggi. > > The gentleman on EEVBlog has a 'scope that reported exactly the same > errors > as I have, so it sounds like
By Sigur?ur ?sgeirsson · #149156 ·
Re: Agilent keysight HP group
https://groups.yahoo.com/neo/groups/hp_agilent_equipment/info;_ylc=X3oDMTJmYjg3amVpBF9TAzk3MzU5NzE0BGdycElkAzEwOTI5MzMzBGdycHNwSWQDMTcwNTA4MzY2MwRzZWMDdnRsBHNsawN2Z2hwBHN0aW1lAzE1Mjk4NTY0NTI-
By Tom Miller · #149155 ·
Re: Agilent keysight HP group
This one? https://groups.yahoo.com/neo/groups/hp_agilent_equipment/info
By Dmitri Shuev · #149154 ·
Agilent keysight HP group
Does anybody know the fate of the Yahoo Agilent keysight HP group ? I can't seem to find it anymore
By Pete Lancashire · #149153 ·
Re: Tek 465 no display
You'll find that plug and play is a good thing. In old tube amps, you could removed the individual tubes (which generally fail with low emission), to make sure that the tubes are not shorted (that's
By Harvey White · #149152 ·
Re: Tek 465 no display
Not to discount the possibility of a short on +15v, there are other possibilities that may be easier to check out. First, are the rectified un-regulated voltages present and sufficient for the
By Dave Hills · #149151 ·
Re: Laptop control of CSA803 using USB to Serial (RS-232) adapter
Hi Gudjon, Certainly interesting! At present my CSA803 is the only equipment with a serial interface and I don't have plugins yet. So testing those Python scripts has to wait. (And I'm not yet
By Albert Otten · #149150 ·
Re: Tek 465 no display
maybe this will help you - I just fixed (sort of) a 465 that was dead. it was dead because the filter cap (the big huge filter cap) on the +5V supply was a dead short, and a prior person had removed
Re: Laptop control of CSA803 using USB to Serial (RS-232) adapter
Hi Albert I connect to my CSA803 with an FTDI USB to Serial converter that I soldered a DB-25 connector to. I have rewritten the example programs from the programmers manual to Python and tested on
By Gudjon Gudjonsson · #149148 ·
Re: 465 bad rise time
On Sat, Jun 23, 2018 at 05:32 pm, Raymond Domp Frank wrote: > > On Fri, Jun 22, 2018 at 11:20 pm, lop pol wrote: > > > > > > > > > I would be satisfied with that trace. > > > > > > In real circuits,
By Brendan · #149147 ·
Re: Tek 465 no display
Harvey, Thanks for your reply. I referred to the manual suggested here by other members, 465 Late, as my sn is the later model. On pg 215 and for the next several pages it explains (to someone with
By musicamex · #149146 ·
Re: Tek 465 no display
Look for shorts on the +15 line to ground. I believe that others have said that the reference for other supplies (say +5, and -8) depend on the 15 volts being up and running. Not sure about the +55,
By Harvey White · #149145 ·
Re: Novice question - 475, what mode is this?
looking at the first trace, it seems as if the B timebase is not triggering properly. You might try A only, and then B only (if you can). From the second trace, it looks as if B is not triggering
By Harvey White · #149144 ·
Re: Tek 465 no display
Hi all, I made some measurements today of voltages in the LV test point area. The following are results measured with Fluke 189. Tp1536 [+55] reads46.9 Tp1548 [+15] reads 0 Tp1558 [+5] reads 0.6
By musicamex · #149143 ·
Re: Novice question - 475, what mode is this?
Thank you all for suggestions - it worked! Indeed, after rotating both the outside (A) and the inside (B) timebase knobs a few times, and cranking up the intensity control, I did get something that
By Dmitri Shuev · #149142 ·