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I'm having a issue with a fail code 1310 . Of the 16 leds number 4 and number 12 are lit, but this problem go's away sometimes.? I think the revision is 11,12,86.the service manual is kinda

The 70900A/B Local Oscillator module contains a Tadiran TL5104/P battery. It maintains the SRAM contents, including basic configuration info and any stored DLPs. I don't know what's causing the

Did you check the battery for memory backup ? not sure the 70000 has battery or not but the module should easy to remove for inspection

I have 2 HP8563E both bought with dead YTO. and both YTO has aged BJT that has insufficient gain to keep the oscillation happen. The new original YTO is not obtainable, so I modified the YTO driver

Thanks! But I have one. Used to install coaxial networking in a distant past!

Thanks. Did not know that! 50 ohm I guess?

I have my 16702b apart right now.?? I was pondering adding some clear screen protector over the touchscreen. Large sheets of generic film are available inexpensively.?? I couldn't find any past

Yes, there should be a termination on the LO output. ?The YIG drives a balanced splitter, with one leg going to the mixer and one to the front panel jack. ?Without the termination, the LO injection

8560E - the display characters are not so good Hi Dan and others, Found the problem, at least in my case. It's the DISPLAY CUTOFF adjustment. I did not adjust anything else for the time beeing, just

One problem in the 437B design is that some parts of its power supply are powered up whenever the instrument is plugged in, but the front panel power switch is "off". I've had several 437Bs, three or

I was using the Hp 436A in the 1980s, and the 438A was a significant improvement, in being able to read forward and reflected power from a dual directional coupler, for example, with built in math

Can anyone explain the major differences between these two series of power meters? I have a number of E4418A/4419As and they have proven reliable and easy to use, except for one which does not

The HP 83522A has been sold. Thank you for looking. The HP 83525A is still available and ready to ship. Details are here:

Hello All, I have an hp 01110-61601 Current Probe that needs the clamp which threads at the tip. Does anyone have any of these they would be willing to part with? Thanks in advance. Christopher Tucker

Yup, got that one. While I do like that book, it's a bit too academic, and I'm more on the practical side. My favorite is "Algorithms" by Robert Sedgewick. Being goal-oriented is good. Despite the

From the units I have and use about 45-60 minutes is reasonable. I use an external reference to drive them so they are stable very quickly. Paul WB8TSL

I have a 5245L chassis that I set up for use only as a signal source. I mounted a small incandescent lamp on the front panel, and wired it to the juice that drives the oven heater. It's a sine wave

Thank you.Sent from my Galaxy

James Thurber, in a parody of an advice column;Doctor, I have books the way some people have mice.Answer: I can't tell if you are complaining or bragging.?Sent from my Galaxy

BTW: The warm up time is given in the "Accuracy" section of the Performance Check. Hal