Thanks but that's not it.  The zero adjust controls work okay and the problem is simply that the variable oscillator doesn't oscillate.  I have a tiny signal from it whose frequency can be varied a

Hi Craig- I must be missing something.... If I click on a thread and see that it's veered off topic so that it's no longer of interest to me, it only takes oh maybe 3 - 5 seconds to click on another

Hi Jim- I have found just the opposite: I've had various Tektronix spectrum analyzer plug-in units for a long time as well as a 491 and have also used HP units (where I used to work) and I find the

I need to get a 2764DC EPROM copied to a text file in (preferably) BIN Format. It contains the Version 2.0 executable code for the 7000 series 021-0374-00 GPIB Decoder Plugin. These GPIB Decoder

I have several complete and working P6137 probes that I’d like to trade for some P6139A probes in like condition. Manuel

Oops.. Raymond

Bob,in case it helps..my LC130 was misbehaving when I acquired it, and the cause was a broken solder joint around the Zero adjust controls (front Panel) . Don't recollect if it was in the fine or

Depending on the manufacturer of the display, there are commercially available LED backlight kits to replace the CCFL lamps. If you find an all white display, then depending on the type of display

Yes I am aware of many of the failings of various capacitor types.  However, I am not convinced that the problem in this circuit is caused by a poorly behaving capacitor.  I will once again attempt

Sorry for the response delay. I am in Lewistown, PA. How cheap are the displays and where are you finding them? I have found the ones, used in the Ultrasonic instruments I mentioned, on

There are two kinds of mica caps, silvered mica and plain mica. Silver mica of a certain period suffer from something called silver mica desease, probably due to moisture penetration through the

The performance check starts on page 5-4 and everything was perfect up to: step 16. Check Horizontal and Vertical Displayed Noise on page 5-15. The noise is twice what it should be for the

I was hoping someone would mention the 271X series.  I was able to pick up a 2715 for a reasonable price (and local pickup, even) a few years ago. A friend has a 2712. External TGs for these are

Inthis part of the 130 therre are only two micas I believe.  I will direct my attention there to see if they are causing a problem.  Somehow I don't think that's it, but we shall see. I am wondering

I have enjoyed the writings of John Miles, KE5FX who has a compilation on his home page "Tektronix 49x...Service Notes". (Google) This document lists many of the problems that can be encountered by

I suspect it was the case that HP had the edge on spectrum analyzers, because (IIRC) they introduced YIG technology significantly before TEK. The older Tek spectrum analyzers like the letter plugins,

Here's the thing Chuck - if the topic was called something like "2465B and 7000 series - a comparison" or something similar that would have been more informative of the thread topic. I have a lot of

Well, I suspect I'm not alone in my opinion that HP/Agilent/Keysight spec ans are far superior to those built by Tek.  About 25 years ago I had to use a Tek spec an at work, and it was a real PITA! 

Craig, You are out of line here. You are my friend, but you are wrong. Peter opened this thread describing how his go to 2465B fell short of his needs, forcing him to resort to a combination of

Don't agree. When I open a post that is "7000 still hard to beat" I expect to find posts on the topic of the 7000 series scopes and plug ins. Not the 2465B. There is nothing more frustrating than