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I checked the FM coil drive and it is right about at zero so that seems like it's not the issue. Nobody seems to know how the firmware works so we are left to guess and try things.? There is some

<keith@...> wrote: I finally found my recovery DVDs. The DVDs that I received as physical copies from Agilent in the "Part Number: 16900-68722 16900A/16902A Recovery DVD Kit"

Hello, OK, so all caps and diodes turn out to be functional - this means the transformer is arcing :-/ The board was rebuilt nevertheless to do some experimentation. I set up a driver similar to the

I don't have the required low pass filter so can't do that step. What will happen if that's messed up?

<keith@...> wrote: I don't remember having any problems when I tried using a Buslink SPCI2P PCI-SATA card, which uses the Sil3112A. It might be that the drivers are only

I don't know if this will help, but here goes. First, don't worry about the apparent offset in coil tuning current. YTOs are only specified to operate over a certain range, like an octave or two, but

Did you do the cavity oscillator correction, test 54, using the low pass filter? I know we talked about it, but I want to make sure this setting is correct. This is normally a firmware correction, you

I purchased a fully loaded 16900A for quite a bargain recently. It has (1) 16950B, 16M, 667MHZ state mode, and 4ghz timing zoom module. It also has (5) 16910A's, 16M option, 500MHZ state mode option.

I found that the 34401A had excessive internal resistance while in the loop so redid the YTO measurements using instead a 0.102 ohm shunt resistor.? I had redone the chart but flipped it so the trend

Sometimes, things have a way of falling into your lap. After the discussion about power meters in my prior thread about the 8664A sig gen, I strolled into my local surplus house and I found this

One of the most challenging troubleshooting endeavors is when there is a misbehaving analog circuit where insufficient or vague limits are specified in the service documentation.? I have such a

LOn Tue, 19 Mar 2019 at 8:18 pm, Dan Nessett via Groups.Io <dnessett= [email protected]> wrote: The specs for the Pabst fan that comes with the HP5335A are: 34 dBA, 61 The flow rates you quote are

Hi Peter, Your plot shows? y = 0.0444x + 0.0656. So, there is a 65.6 MHz offset at 0 mA main coil current. This could in part be caused by a FM coil current which does not show up across the 40 Ohm

Hi The battery backuped ram (M48Z18) in my HP 54645 died on me.. I desoldered it, put in a socket. Then I fixed the ram by heating it a bit, and pry it open. Removed the old battery, and soldered on a

Hi George, Just sent you $10 via Paypal, and follow up email with address as sending money to a friend does not allow to include one. Thanks! Alex

The Tek 11801 has 4 Panasonic BR 2/3 A 1200 mAh 3 V lithium cells. All of those tested at 3.07 to 3.1 V despite manufacturing dates of 12-87 and 09-88. I think the fundamental issue with the NVRAM is

Hello, with apologies, I need to concur and agree. There indeed is a header in the specification. You learn something every day. Greets from Budapest, 3m under the ground - - - - - With best regards

I like the discreet component approach here and it looks like it would work well for Tektronix 2465B scopes as well that have a severe height constraint. With respect to alkalines H.. No. Bad idea and

That would be an interesting solution but they're actually a different lithium chemistry.? An iron disulfide cathode gives the 1.5 volt cell voltage:

As far as I know the 1.5V lithium AA cells are a hybrid between a LDO power regulator, set to 1.5V and a 3V lithium cell of some sort. The few I have found put out somewhere around 1.8V unloaded, and