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Hi Raymond, You're a stickler for the specs. You are correct on both accounts but I believe I was able to work around them: 1) The bandwidth is 350MHz but I use a 7A29 in the horizontal slot which

The old silver mica caps were used in lots of antique AM broadcast radios (1930s -1960s), particularly in the IF stages. They were known to cause a phenomenon called "thunderstorming", which, even

Craig, I recall more than a few instances where you willfully dragged a thread down a direction that the Subject didn't expose... Why is it ok when you do it? And, if it "happens all the time", maybe

Hello, This email message is a notification to let you know that the following files have been uploaded to the Files area of the [email protected] group. * /Tek 7D11 & 7D14 & 7D15 OCXO.pdf (

Well, to each his own.? Keeps things interesting! ;)JimSent from my Verizon, Samsung Galaxy smartphone

if you lift one leg of C22 (towards V15A), it will isolate the variable oscillator, and then you can troubleshoot it without involving other parts of the circuit. Same with C17 - the amplifier for

Hello Craig, since you made your rude remarks to the fellow below who was asking about an active probe the number of Tekscopes posts coming into my inbox have reduced. That is a fact. Craig, your

Tom, I think one reason you might not appreciate Craig's comment and position is twofold. First, is that I would guess that you're reading the posts via email and so, I agree, it is very easy to

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.

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 Alliexpress,

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 horizontal