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I have a couple of HP and several avantek units. I’ll check the on in the morning Regards, Stephen Hanselman Datagate Systems, LLC 3107 North Deer Run Road #24 Carson City, Nevada, 89701 (775)

Batteries plus may be able to weld you up a nicad pack. I would not use lithium and remember if you just use alkaline cells to put a diode in series with the batteries to prevent the charging system

That is awesome definitely.? Especially, even more exiting is if a decent board can be made in an even more cost effective module even without all the features like has been done with the older AD

It’s a standard HP calculator nicd pack as used in the HP45 type calculators. There are people selling rebuilt ones in the USA on Ebay. Not as easy in the UK! Adrian Sent from an I-thingy

The original battery pack was a 3 cell battery Ni-Cad @ 4.5v. Years ago I could purchase similar sized 1.5v Ni-Cad cells and rebuild the battery pack. At this point in time I would simply find a

The battery is just three AA-sized NiCd cells in series, so you could replace it with anything that you can cobble together from similar cells.? Ed

Hi all, I have an 8566A system that is in need of a new battery so it doesn't lose it's mind all the time. I understand that, unlike the B models, the battery is behind the front panel. Where can I

Hello group, I am in need of a HP 5086-7592 Yig oscillator.? I have found many on Ebay but figure with the nature of these things I could end up with a part no better than what I have.? Any advice

Today I received a new A11 phase lock board for my misbehaving 8753ES (thank you Pete M!). A lot of measurements will follow as I have lab time, but I thought I'd run a simple "plug it in and hold

Thank you pianovt. I had seen the comparison on that web page at some point and lost track of it. Just what I was looking for! Steve, K8JQ

FWIW I bought an 8648C w/ opt 1E5 for under $1k delivered. Very nice clean instrument which should meet most or all of my needs. I also received an email from AD today which might be relevant. They

Hello, well, I am now semi-retired - maybe, if I find another opportunity when some surplus store closes, I will snipe it. Until then, I can darkly remember that the manual for the 41951A contains a

The DS1230Y utilizes an encapsulated internal battery.? The battery is disconnected until external power is applied breaking the "freshness seal" and connecting the battery to the RAM.? So with a

https://www.kirkbymicrowave.co.uk/Everything-you-wanted-to-know-about-the-HP-8753-VNA/

Yes, I believe the general shape of the circuit is known or can be deduced from available literature.? The best summary I have found is here: https://www.hpl.hp.com/hpjournal/94oct/oct94a12.pdf?

Hello, had a lab accident yesterday, so still a bit stressed. ad 2) nope. But I was told that it uses some kind of transformer, so the block diagram in the service manual is deceptive. I furthermore

All good info. In this case the output frequency is consistent with the applied current so that is what I’m going to investigate first as it is higher than it should be. Peter

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