Paper Used in Older Tek Manuals
I'm resorting to printing one of my own manuals (which doesn't appear to be available in hard copy from the usual suspects, and is thankfully relatively short). I've got it printed now on normal 20 lb
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Jeff Dutky
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#184817
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Beware of aluminum electrolytics being sold on the internet. Many of them have sat on a shelf for more than 30 years and they have developed corrosion inside which renders them worthless. You can't
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Gary Robert Bosworth
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#184816
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Roy, ESR is a sort of object for those trying to flount something special.? Measuring it is usually a waste of time.? If a capacitor's ESR has a high value, that is generally made obvious by a high
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Bob Albert <bob91343@...>
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#184815
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Re: DM 501A Mode Select Switches Issue
Cory, sounds like classic gummy lubrication on the latches for those pushbuttons. Some spray lubricant usually does the trick, but it might only be temporary. The real solution is to get some more
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Jeff Dutky
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#184814
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File Notifications
#file-notice
Morris Odell <vilgotch1@...> added folder */Time delay relay hack* --- The following files have been uploaded to the Files area of the [email protected] group. * /Time delay relay
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[email protected] Notification <noreply@...>
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#184813
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Re: Looking for data on 9-pin Vacuum time delay relays used in old Tek-scopes
I have uploaded the schematic of my time delay relay hack to a new folder in the files section
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Morris Odell
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#184812
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Hi Ronan: No worries: Anything, and everything, I post (unless it's in quotes) is all and only just my opinion. (The moderators are the arbiters, not me.) Thus, it's just and only my opinion that the
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Roy Thistle
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#184811
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DM 501A Mode Select Switches Issue
Greetings all¡ I¡¯m having an issue with the bank of mode select switches on my DM 501A. Only the resistance mode switch will latch, unless I keep some light pressure on the resistance mode switch
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sweetbeats
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#184810
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Hi Ronan: Yes... and there are a good number of very knowledgeable contributors, to TekScopes... who are quite generous with their knowledge and time. Mostly it's all about Tektronix scopes... but,
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Roy Thistle
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#184809
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Re: AA 501A Parts, DM 501A Probes
So, a *sort* of related question, can anybody recommend a ¡°can¡¯t go wrong¡± set of female BNC to female BBC patch cables as well as banana to banana patch cables? Cory Oace
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sweetbeats
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#184808
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Re: Advice on fixing 2465B slow horiz sweep
If you're seeing this only for the sweep speed, but consistently for *all sweep speeds* *and for the cursors*, then possibly your horizontal gain has drifted. What's more likely happening is that your
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Sigur?ur ?sgeirsson
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#184807
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Re: Advice on fixing 2465B slow horiz sweep
Sure, first think I checked.
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Grayson Evans
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#184806
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
You're right, the dissipation factor means the power loss in the capacitor. The more power loss, the worse.
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cheater cheater
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#184805
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Hi all, I have an HP 4261A LCR-meter... apart from capacity, it displays dissipation factor. This can be converted to ESR by taking into account capacity and frequency. I just built a conversion
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Martin
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#184804
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Hey Carsten, does the Mastech MS8911 measure ESR? I can't find that function mentioned on their website.
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cheater cheater
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#184803
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Re: Tektronix RAMS (Surplus) Store - Odd hours?
At the risk of making it any busier in there, it may be one of my favorite places in the whole world. Despite being a complete greenhorn when it comes to most of the equipment, sneaking out of my
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Magic_Smoke
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#184802
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Re: Advice on fixing 2465B slow horiz sweep
--- To rule out the simplest case, is "VAR" knob of sec/div switch in the calibrated position? Ozan
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Ozan
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#184801
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Re: in-circuit capacitor testing (ESR tester) -- ideas appreciated.
Roy, Just checked and it works perfectly. And so this will be my first and last ESR post on TekScopes. Thanks for the help! George KD6NEW
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Glydeck
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#184800
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Re: Replace/Repair TM 500 Module Side Panel Latch
Easy enough to ask them if they are using an FDM ( fused deposition modeling) printer, an SLA (Stereolithography) Printer or an SLS (Selective Laser Sintering) printer. If they are using SLA or SLS,
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Michael W. Lynch
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#184799
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Re: Replace/Repair TM 500 Module Side Panel Latch
I wondered if the finish might be superior to what some of the local shops might be providing. For the price difference, it's probably in my best interest to go with Shapeways. Thanks, Barry - N4BUQ
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n4buq
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#184798
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