Re: DSA 602, Still Relevant Today? Untimely response FWIW
I'm pretty sure he has a 100,000 m^2 building with a 1,000 elv...err...electronic engineers, graphic designers, etc., working for him. "Retirement" just can't explain this feat.
Seriously, hats off
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n4buq
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#207795
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Tektronix 465
Greetings from Louisiana!
I have 3 465's and I am parting one out. If anyone needs a part let me know.
I pulled all the transistors, they are in sockets. I had about 6 transistors that were bad. I
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Barry Breaux
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#207794
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SC503 Vertical Position Issue
Greetings from Louisiana!
Working on a Tektronics SC503 that still has a few issues. I got the power supplies sorted out and I am able to finally see a trace on the CRT. Its bright and beautiful and
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Barry Breaux
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#207793
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Re: DSA 602, Still Relevant Today? Untimely response FWIW
Gianni,
This is truly the missing manual for my DSA 602.
Thank you,
George KD6NEW
By
Glydeck
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#207792
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Re: 80E04 sampling module - fair price?
Well, one just sold on epay for approximately $5K. The '04 is a TDR
sampler. If you just want a sampler, I suggest you try for the 80E02. The
bandwidth is 12.5 GHz.
(TDR samplers will be more
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Mark Kahrs
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#207791
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Re: Solder - Tin/Silver or Tin/Lead/Silver?
Greetings,
I have a TEK 575 curve tracer and on page 4-2 of the service section of the manual it states:
¡°It is advisable that you have a stock of solder containing about 3% silver if you
By
ken chalfant
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#207790
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Re: 80E04 sampling module - fair price?
Yes I understand and totally agree.
But, that doesn't answer my original question, what would a fair price be ? ;)
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Wevie
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#207789
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Re: DSA 602, Still Relevant Today? Untimely response FWIW
You, sir, are simply amazing. I have had TWO of these for 25 years, and been so distracted that I have NEVER even turned them on! You got one less than 15 days back, and have written a BEAUTIFUL
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Jeff Kruth
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#207788
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Re: Quarter-turn panel fasteners
Do a search on ¡°Dzus fasteners¡± (yes, Dzus is the correct spelling). There
is a wide variety of them from various sources. I am not familiar with the
particular diameter and length of the ones
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stevenhorii
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#207787
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Re: Solder - Tin/Silver or Tin/Lead/Silver?
The Tek 500 tube scopes of 1950s...1960s include a small roll of the original Tek silver soldering for ceramic strip repair
The 25 mm roll is usually on the chassis top, see service manual.
The
By
Jean-Paul
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#207786
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Re: Quarter-turn panel fasteners
Hi again, will unearth my 130 LC, and compare the quarter turn twist lock to the ones on my 7000 MF scopes .
Am sure they are available, similar used in aviation, mil, etc.
Jon
By
Jean-Paul
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#207785
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Re: Tektronix 454A Oscilloscope No Trace but Beam Finder works fine?
Bonjour,
Have used and fixed Tektronix scopes back to 1968, the first solid state portable 454, 453. Amazing these 50 years old scopes can still work at all. Most need a complete examination for
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Jean-Paul
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#207784
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Re: Quarter-turn panel fasteners
These sound like the ones used in the 7000-series scopes to secure the panels; however, I think they're not exactly the same, correct?
Barry - N4BUQ
By
n4buq
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#207783
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Re: Quarter-turn panel fasteners
Hello Jon,
Yes the numbers I quoted are from the manual.
Indeed the red of the meter scale is almost gone so I will need to search out a custom transfer option.
I don't see anything in MMc which
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Richard Kelly
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#207782
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Re: Quarter-turn panel fasteners
Tek LC 130meters are unique and very useful, meant to check scopes input capacity, can zero out any lead or cables capacitance. Beware the tired lytic and paper capacitors and meter scale
By
Jean-Paul
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#207781
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Quarter-turn panel fasteners
I¡¯m restoring a Tek 130 LC and will need to replace the above. On one side the plastic piece (210-047) has broken which won¡¯t be hard to replace with similar or a 3D print, but on the other the
By
Richard Kelly
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#207780
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Re: DSA 602, Still Relevant Today? Untimely response FWIW
Thanks for your words.
My secret is simple: it¡¯s name is ¡°Retirement¡±¡?
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Gianni Becattini
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#207779
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Re: Tektronix 454A Oscilloscope No Trace but Beam Finder works fine?
I¡¯ve been troubleshooting the oscilloscope further, focusing mainly on the Vertical Amplifier board. I¡¯ve attached pictures of the boards and the schematic diagram from the service manual, with
By
Jeffrey Wang
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#207778
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Re: SC503 -12V power supply
Ozan,
Apologies for calling you Onan in a previous post!
I also installed a new 2N2219. But installing the 2N3565 was the part that brought it to life!
I will upgrade to a 2N2219A when it comes
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Barry Breaux
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#207777
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Re: SC503 -12V power supply
Hi Barry,
Good news. We did try shorting C-E of Q8051 and it didn't change the output, it should have eliminated any effect of Q8051 as the only root cause, i.e. there must have been something in
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Ozan
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#207776
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