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Yup, I know what you mean - normally the screw pulls the cover on or off nice and smoothly. But, if the metalwork is banged up or deformed enough (very common), it galls up the aluminum and can be

Hi Ed, I don't think there is a capacitor, and that it is DC coupling for the whole band. The warning on the front panel of the 8751A is "Damage Level, 20dBm, ±2VDC MAX” (±3VDC in operating

Sure, I do. Except I stick with countersunk heads - looks nicer. But the problem is, often the covers are quite tightly fitting into the slots, and can't just be slid out by hand once the securing

Hi Don , After performing presel peak at 19GHz it looks like the amplitude response starts to look quite OK. Maybe the previous owner of the analyzer performed the calibration incorrectly and that's

Maybe in 10 Hz cutoff, it's capacitor-coupled, but in 5 Hz mode, it's actually DC-coupled to save another cap. If so, then DC drift due to some fault might be pushing it out of bounds, also accounting

Hi Vincent, my short was on the same board as yours, only a different tantalum cap. As I do not have an IR camera, I identified the faulty cap by using my 6.5 digit Ohmmeter (HP34401). The shorted one

Rude gesture in their general direction... Yup... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed

Just use regular screws of the right length and thread - some are English and some are metric. Don't even bother with flatheads - standard panheads are more durable, and there's really no need for

Oh, one more clue: If I disconnect the 30 MHz input to the fast processor board the error messages disappear and the PLL remains solidly locked. Peter

When working on a missile in the navy, we used modeling clay to contain the swath from a drilling operation. Glenn -- ----------------------------------------------------------------------- Glenn

I had similar experiences "back in the day" with PDP-11 based voice banking systems.? Thousands and thousands of TTL chips many with sockets then huge wire-wrapped backplanes.? A nightmare of

Re:- I wonder if I could pull them, read them out and reprogram onto new chips.? If one is on the edge that might fix it.? EPROMs do go bad... Good, if you can be sure you read the EPROM as

As far as I'm aware, there are two variants of this screw with different thread sizing: a 6-32 0.46-in variant and an M3.5x0.6mm 12mm-LG variant. I've seen the 6-32 come only in Pozidriv and the M3.5

Re:- As rarely happens there is some HP equipment (an 8712 vna and a hp3586) for sale here in Australia. See the https://vkclassifieds.net.au/ website. And an 8566B. Dave 'KBV

Yes, =everyone= that works on old HP gear must struggle to find these screws. You'd think that by now some Aliexpress seller would be offering nice shiny stainless steel ones, with matching circlips,

As for RAM versus ROM problems: it might be that the firmware is copied from ROM to RAM before it is started in earnest. I have worked on a design like that in the dim past. Reason for doing this: 32

Hi Peter, I haven't had time to follow all the emails regarding your 3577A because I'm quite busy at the moment, but I'm sending you this email anyway for information, it's a copy of an email I sent

Hear, hear! I would participate in a group buy. In addition, has anyone a recommendation on re-threading the receiving end of these screws? I have done HELICOILs but containing debris from drilling

I'm trying to find a source for the countersunk, odd-shape screws used to secure the sliding top and bottom covers of Hewlett Packard System 2 cases. The screws that are held in place with a circlip

Yep...the frog in a pot on the stove.....clueless too! Renée