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At 2019-03-21 02:48 PM, markhaun2000 wrote: 3) Not a 4396B question per se, but what is the currently recommended GPIB interface solution in 2019? I would prefer not to use any NI stuff or the VISA

Be careful "bench testing" Yig Tuned Ocillators" (YIG = Yttrium Iron Garnet by the way *.) Older designs that use + and - polarity supplies can be destroyed if you get the power up sequence wrong, the

What are main differences between the HP8753D and the HP8753ES? I could maybe figure this out from old HP catalogs but if someone on the list knows I would appreciate your insight. Thanks. Steve, K8JQ

Yes, the numbers I gave for the main coil are strictly that - FM coil disconnected. Incidentally, the main coil has a resistance of approximately 44 Ohms at room temperature. That will give you a way

...who, if they had any influence on file formats and compression algorithms, indicates a serious problem within the company. Not an uncommon problem, by any stretch, but a serious one. -Dave

Yeah, but you have factor in the suits.

I have a mess of these I got new a few years ago when I repaired some 2075 eatons. Might still have some around. Pete wa2odo [email protected]> wrote:

Battery life on the early Dallas parts was 5-7 years. I had to replace one in a 5-6 year old Sun workstation. Dallas stopped making them and for a while Maxim made them. At present the only NVRAM

I was thinking along the same lines. Barely even heard of PNG initially, it might have been considered risky to use a format which might have died out. Peter

Pretty sure the 8753D is newer than that, but even if it isn't, JPG was *never* suitable for that sort of imaging. A good choice (perhaps the only "right" choice) in 1995 would have been GIF. Heck,

I don't know the age of these VNAs but PNG was only invented in 1995. Probably needed a few more years before they became popular such that an engineer would consider using it. Maybe that explains it?

This is beginning to line up. 3.5 volts at 300 kHz, 3.5 volts across a 40 ohm resistor = 87.5 mA, 87.5 mA divided by 23 mA/GHz = 3.804 GHz, Right in the correct 1-6 MHz high stated range. Peter

Wow, I can't imagine that any engineer who was able to get hired by HP wouldn't understand why JPG isn't appropriate for screen shots or other line art. (or anything else that isn't a continuous-tone

Ah, so it starts at zero mA, although we are not interested (and likely not specced)below 3.8 GHz. 3.8 GHz output would then correspond to 3.8 * 23 mA on the main coil. Should the FM input be zero? I

It's a straight line, so pick any frequency you want. There is a non-linearity starting above 5.5 GHz or so. But, you are having problems at the low end, below 1 GHz rf out. That means the YTO is

You are thinking of the Dallas SmartSocket series, and it has no identifying marks on it. It was used with a normal low power CMOS RAM chip. The OP's wording was somewhat awkward, but he doesn't have

This is my first post to the group, so hello everyone.? You've been a great resource when I've needed to search for information on prospective or actual TE purchases; thanks :) I recently acquired an

Maybe not!! some of these Dallas devices have a battery in the socket to maintain the contents. It may not be one of those but do check before removing anything. The "socket" may actually be a header

Hello, I am doing maintenance on my instruments in my lab at the moment and I have a 6811B which poses a problem for me: the calibration constants are stored in a NVRAM whose date code is 1998, the

Thank you. Is there a reference point and current? Another words, X.XXX GHz at XXX.X mA? Peter