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Saevar, Dmitrij, One more question - I'm a little afraid of doing firmware update, because I have just found this topic: /g/HP-Agilent-Keysight-equipment/message/137236 I'm afraid

Hi! Mostly the 1100 series, some 1400 and I had a 1200 come around. I still have a few examples in my stash. I lived near Goddard SFC and attended the sales there in Bldg 16W, got lots of Microdyne

Wow! This thread seems to have taken on a life of it's own. Who'd have thought such a simple tank circuit could generate so much interest? I'm just finishing my lunch break right now and just wanted

Sorry : Q =Fo/BW Ing. Patricio A. Greco Taller Aeronáutico de Reparación 1B-349 Organización de Mantenimiento Aeronáutico de la Defensa OMAD-001 Laboratorio de Calibración ISO 17025 AREA: RF/MW

Hi: I’m following this topic and its really interesting. If the VNA port is properly calibrated you can connect any dipole on it and measure impedance. The instrument must to be calibrated at the

Weren't some of these only identified by the lead length of the positive side? [email protected]> wrote:

Re:- "Some tantalum capacitors needed a small resistor of a few ohms in series with the supply voltage to limit the dV/dt and inrush current as well." Oh Yes indeed!? In truth, I suspect all

If you reconfigure the LC circuit, as a series resonant element, I suspect you'll see "Resonance" as a point at/near the SmithChart centre point, where the L and C almost cancel themselves, leaving

What series of Microdye radios did you service? I worked on many of them at their factory in Ocala. We still produced some 1100 series, 1200, 1400, 700/1620, and the RCB2000 during my time there. They

Hi Saevar, Dmitrij, Thank you very much for all the information. I will try these then. Thanks, Wojciech

They have smaller ESR (also should be able to reach higher frequencies). I replace them with low ESR high temp aluminum ones (usually 50V). Additionally one can add the 100nF SMD between the legs. In

Jinxie, Bravo for the fine notes and topic. Happy to send you links or pix if you are interested. As a kid I wound Tesla coils since 1956 (!) of increasing sizes. By 1970s..1980s got classic Boonton

Forgot to mention - one thing I've noticed is that much more modern non-hermetic Ta caps like encountered in surface-mount on things like PCs and laptops, don't seem to be much trouble. I'd expect

So, on the subject of those dipped "orange drop" tants: they suck.? They go bad with age seemingly, because I am told, the seal is not made to last and they dry out and short. I have seen literally

I think you'll find that your stock of non-hermetic (like dipped) Ta caps are less reliable than expected, due to environmental issues like humidity after many years, even if never used before. The

Some tantalum capacitors needed a small resistor of a few ohms in series with the supply voltage to limit the dV/dt and inrush current as well. Hugh Gilbert [email protected]> wrote:

Hello Gary, Tantalum capacitors’ working Voltage rating is for marketing purposes only. The Arrhenius equation regarding time to failure applies. As you approach the rated Voltage, the time to

I'm sure we've all repaired some equipment where a tantalum capacitor has shorted. I lived for 30 years in San Jose, and collected lots of parts, including a lifelong supply of teardrop tantalum

Thanks. It's a long time since I wrote that software program but (to compute Q) I think the program uses a map based on empirical measurements made decades ago by Butterworth and Medhurst some time

Thanks. It is a bit hard to see the blue arc in the image so I've thickened up the blue trace width and plotted it again without the markers. The top of the blue arc corresponds with the start