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Re: 465B service manual.
Please go to bama.sbc.edu
By Hsu <Jbenson@...> · #34826 ·
465B service manual.
Anyone know where or have a copy of the 465B service manual? The one on the bama site is incomplete with schematics cut off and parts missing. ~Jordan~
By Jordan Kersten <jordankersten@...> · #34825 ·
Re: 465B z-axis?
Wow, how did I miss this: the 110 test point reads 100V DC and 11 volts AC. Something is up there.
By jordankersten <jordankersten@...> · #34824 ·
Re: 465B z-axis?
How's the +110? -ls- glydeck@... wrote:
By teamlarryohio · #34822 ·
Re: Russian copy of Tek 575
I wonder if it's been upgraded with nuvistors...;-)
By d.seiter@... · #34820 ·
Re: A little off Topic, SG504 Output Head
Hi Rod, I took a look in my extensive archive file for a Data Sheet on the 012-0482-00 and found no reference to it at all. I was hoping a Data Sheet on it would at least tell me what kind of cable is
By Stan & Patricia Griffiths · #34819 ·
Tektronix Unobtainium Type 570
Looks like one of these is up for auction on ebay. Item number: 130257697066 _http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=1 30257697066_
By Glydeck · #34823 ·
Re: 465B z-axis?
Jordan, I don't have a 465B manual with me, but 40 mv rms does sound a little on the high side. I believe that would be about 113 volts pp, [(RMS x 1.414) x 2=P-P not exactly a sine wave but close
By Glydeck · #34821 ·
Calibrating a 7704A
Hi, I was just wondering if a Tek 067-0587-01 calibration fixture is really required to calibrate a 7704A. It is possible to use a calibrated 7A26 and a function generator instead? I realize that a
By Neil Gruending · #34818 ·
Russian copy of Tek 575
A while ago we had some discussion of the Chinese "GT-2" copy of the Tek 570. Now a friend has sent me this Czech auction listing, which appears to show a Russian copy of a Tek 575 curve tracer:
By David DiGiacomo · #34816 ·
Re: Russian copy of Tek 575
Hello from China! The Chinese QT-2 is a copy from TEK570, not GT-2.Maybe Cninese JT-2 copy from TEK575. Hsu
By Hsu <Jbenson@...> · #34817 ·
Re: 465B z-axis?
Just turned off the auto-ranging and took readings again. They all read about .003VAC except the +55 rail. It reads .040VAC. Is that enough to cause my problem? DC reading. auto
By jordankersten <jordankersten@...> · #34815 ·
Re: 465B z-axis?
I checked my DC voltages for ripple by using my dmm in AC mode and measuring the DC levels. On the +5 rail I got .003VAC, on the -8 rail I got .007VAC, on the +55 and +15 rails my meter made this
By jordankersten <jordankersten@...> · #34814 ·
Re: Massachusetts surplus
The state of the store is normal I've been shopping there for 20+ years and they have moved most of the test equip to Ebay as the Tech industry is dead in NH so there are few local customers. What
By Scott C. McGrath <mcgrath@...> · #34813 ·
Re: 465B z-axis?
I also have the same issue with my Tek 465 scope. A picture was added to your photo album: http://tech.ph.groups.yahoo.com/group/TekScopes/photos/view/d08f?b=6 These are my settings: I'm thinking +15V
By rlc9878 · #34812 ·
Re: Massachusetts surplus
I have to retract my recommendation for esssurplus. I visited today, and the store is pretty much cleared out. Looks like they are moving exclusively to eBay. There is still some very vintage
By ebayatessnh · #34810 ·
Re: Tek 465B Z-axis?
Also, the dashes in the lines move along the trace...if the trigger is set to Line, the dashes stop and the trigger led lights. Would this be a sign that it's AC line hum? If so, would power supply
By jordankersten <jordankersten@...> · #34809 ·
465B z-axis?
Also, the dashes in the lines move along the trace...if the trigger is set to Line, the dashes stop and the trigger led lights. Would this be a sign that it's AC line hum? If so, would power supply
By Jordan Kersten <jordankersten@...> · #34808 ·
Re: Tek 465B Z-axis?
glydeck@... wrote: He said 2 mS, but that's the culprit. ~8 mS period is roughly 120 Hz. There will be much hum on at least one test point. -ls-
By teamlarryohio · #34806 ·
465B Z-axis?
I added some more photos with a signal attached. You can see some "ghosting" in the signal and some noise as well. ~Jordan~
By Jordan Kersten <jordankersten@...> · #34803 ·