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Check the rectifier feeding C5. The capacitor will get hot if there is AC on it from a shorted or leaky diode. Robert G8RPI.

If you haven't seen yet Mr. Carlon's Lab just did a teardown and restore with custom LED's and driver:?https://www.youtube.com/watch?v=vrmwql2msbU&t=639s

On Mon, 27 Jan 2020, Dave Wise wrote: OK, I've put everything together finally for the first run as a whole and it worked like a charm. Not fully assembled yet (covers not installed) but otherwise

Got a new 3.5 Female cal kit today and a thumb drive with the data. ?It’s non HP but the cal data seems not bad ? Not that I really know much. But did get a chart of numbers Moved the .CK and XKT

JF, Thanks, I have contacted you, (I think), through your contact in on this forum.

Sorry for the delay on the response. It does not have option 004. I tried what Don B had said about leaving it plugged in. I usually don't. I do have a GPS 10Mhz standard that I leave on 24/7. Even

So, mouser has a set of 10 for $3 each: https://www.mouser.com/ProductDetail/Pomona-Electronics/5520?qs=mF%2FuAlTFnPpb%252BmlVceiP1Q%3D%3D and the ones I referenced earlier are under $0.70 per unit,

Similar clips are Pomona 5301-6, or 5419-8-0 (ignoring the wire).

Sorry, I cannot find your direct address ( testtech@... ???) : I have for sale the two extender cables, p/n 11672-60001 and 11672-60002 for the 8660x signal generator series (with the

There were some RF connectors that looked like the RCA phone connectors, except that the center pins were shorter, used in General Electric mobile radios, up to 460 MHz. I would assume that there were

I'm looking for a CRT to restore an HP Storage 1331A XY. The original part # was 5083-2578 but I don't know what compatibility with other tubes is like. If anyone has a copy of the 1331A operator's /

That must be a recent thing; I got an upgrade for my C to an E about two years ago. (for actual cellular development work) Maybe. But why not just get a real spectrum analyzer and signal generator?

The E5515C series is in fact discontinued, not current. the options specifically say that other frequency coverage is possible (270-1300Mhz at least), I am trying to find out how to do it. the docs

Hi Steve, Page 3 of the *CONFIG* menu for the sync settings, not the CAL menu. -mark

Not necessarily; these are current (or very nearly current) analyzers. I don't know if there's any way to expand the range. This is a cellular test device; it's very tightly tailored for, well, you

Further to the list I posted, I went to our offsite storage unit, and found another big pile of HP CRTs, including many new ones. the additional ones include (all prefix 5083): -4454, (2) -5152

I got one of these (working) off ebay, with option 2 (2nd generator), and would like to expand the RF coverage range. I understand there is an option for this (I have no use for the cell features),

Hello all, just joined the group. My second HP piece is next to me, a 5345A with a 5354A plugin. The 5345A seems to work fine, but the plugin doesn't. My investigations are now on the A1 mixer. I

At 2020-03-02 08:56 AM, Mark Litwack wrote: On the screen issue, try the display centering adjustments on the second page of the CAL menu. Thank you, I was hoping for something like that.

It's true that the interests on the GammaSpectroscopy list are mostly about gamma spectroscopy measurements and materials, and less about the instrumentation. The common focus on using PC sound cards