End-to-End Capacitance of SMD Resistors

Well, the 4191 is rarely used here so it's in the far back of a corner table.

Those "little pieces of wood" were actually 2-3 foot rounds of pine. And then the four cords where gone before the winter was gone :-(

In a pinch a resistive-T will do. Set to 1dB/div the analyzer will show an ever so slight dip. Of course mine still has a real CRT, none of those pixely LCDs. Which unfortunately also means that it's really heavy.

BTW, does anyone know where to get a decently priced CRT for a HP3585A? A client of mine had one go dim on them. Probably the cathode has become tired.

A real dip meter has to be a loosely coupled oscillator. Anything else makes it a tough job. An analyzer works, too, but it should ideally have an old-fashioned CRT for very slight dips.

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There's a clever, low cost design here and some comparisons ...

Nice. That design is largely the same approach as the AIM4170 takes, with extra emphasis on reducing the cost (keeping the frequency span to just HF helps there), it would seem. I like the standalone operation aspect of it.

I don't understand why there still is nobody who makes a spectrum analyzer in that cost range. Something simple that goes to 1GHz for pre-compliance, fits in a briefcase and talks over USB. But not those drifty TV-tuner thingies. If I just had the time ...