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Re: New file uploaded to TekScopes
Very useful info. There's an error on page 78. An extra digit (4) has been added to the 4 digit example of the 162k resistor. It should be 1623 not 16234. wrote: <TekScopes@...> wrote:
By sukrat2007 · #34766 ·
Re: SG5030 behavior
Having no own experience with this model I can't give you specific advice. However, this kind of error is usually easy found. You need a hairdryer and a can of coolant spray. Warm the machine gently
By Martin Jangowski · #34765 ·
SG5030 behavior
I have restored a SG5030 (bad electrolytic smd caps). It works perfectly if allowed to run for about 5 minutes. If it has been sitting cold for a few days, however, it will show various errors on
By Howard Ashcraft <hwa@...> · #34764 ·
Re: Option 13 in an R7912?
Hello Jose, In the 1986 Tek Catalog, for the 7912AD, Option 13 says the TV Scan is changed to 625 lines at 50 Hz. I also consulted the 1974 Catalog and it says Option 13 for the R7912 is TV scan is
By Stan & Patricia Griffiths · #34763 ·
Sockets for P6137 probes
Hi, Who sells the matching sockets that fit the P6137 scope probes? What is the description and part number? I intend to solder these into a pcb at the nodes where I need to make measurements but must
By Dave_s <group78@...> · #34762 ·
Re: New file uploaded to TekScopes
Bravo! Thank You! ? jerry
By Jerry Massengale <jmassen418@...> · #34761 ·
New file uploaded to TekScopes
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the TekScopes group. File : /SMD_codes.pdf Uploaded by : udtmang <mwallace9@...>
By TekScopes@... · #34760 ·
New file uploaded to TekScopes
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the TekScopes group. File : /DiffOscMeasurements.pdf Uploaded by : udtmang
By TekScopes@... · #34759 ·
Re: 7623A readout problem
I am not familiar with the 7623 (BAMA is slow downloading today) but my 7633 and 7603 use the same IC part 155-0022-00 for the vertical and horizontal amp switch so I tested by substitution. My
By Robert Furniss · #34758 ·
Re: 7623A readout problem
When you say "developed", do you mean that this is a problem that has not occurred before with this particular mainframe? Craig
By Craig Sawyers <c.sawyers@...> · #34757 ·
looking for 670-5523-00/01/02 phase lock control module
I have a 496 SA s/n b010424 that was converted into a hangar queen at some point in its life. It has a mix of modules pulled from five different units. Very organized module changers worked on this
By Jim Cotton · #34756 ·
Re: Tek 465 - Blown Fuse to CRT HV power supply
Many thanks to the Tektronix forum and for all of the terrific help received from the members. The 465 scope is now fixed. Capacitor C1419 was shorted to ground. Once the capacitor and fuse were
By rlc9878 · #34755 ·
Re: 7623A readout problem
My 7704A does the same thing. I thought it was normal until I got a R7704 where the readout characters stay put no matter what the vertical position controls do (It's the first thing I checked on the
By Neil Gruending · #34754 ·
7623A readout problem
I have a 7623A which has developed an unusual problem. Perhaps someone in the group has dealt with this before? I have 7A18 and 7A26 vertical plug-ins, and a 7B53A timebase plug-in. The traces for
By fuzzbrain01 · #34753 ·
Re: Looking for a 556.............................
What is your location? They are around a hundred pounds... not fun to ship! BTW, I have one for sale in the Boston, MA area. Also 2 non-working 547's (one an engineering prototype), a
By tertiary_42 · #34752 ·
Looking for a 556.............................
I am in the market for a 556 in decent condition. They are just so damn good looking!!! Anyone out here looking for a good (permanent) home for your stagnant 556?
By David <gavinator68@...> · #34751 ·
Solder Tricks-Again!
One more to add to the heap if it hasn't been mentioned already. I watched as one of our top rework operators removed "chip" resistors, caps, inductors. She would use two irons of equal tips, heat
By normanshanks <normanshanks@...> · #34750 ·
reincarnated tek scope parts
I was recently given a bunch of components from a 549 scope. What a beautiful piece of engineering. I was inspired to create something to help the bits live on. I built a 1 tube regenerative receiver
By ve7it <trashbag@...> · #34749 ·
de-soldering
I just happened to think Now that I no longer have 5 extra bodies around here, I don't really need to keep their tools either I do have an extra Ungar / Weller 4624 Solder / de-solder station I could
By Paul Kraemer <elespe@...> · #34748 ·
Re: unsoldering tricks
Hi, I remember hearing of a company that used long thorns from a local bush to clear solder-filled PCB holes while heating the pad. They don't wet or conduct much heat away but are unforgiving if you
By Joe McElvenney · #34747 ·