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Date
Re: Replacement battery for 8566A
The issue is the contacts as it is a drop in pack but I¡¯ve rebuilt them by resoldering those to the weld tab if you¡¯re quick nothing gets too hot at the battery! Adrian Sent from an I-thingy
By Adrian Nicol · #95276 ·
Re: Signal Generator Comparison Chart ?
Just a note on the Gigatronics 1026 generators, when working they are pretty good generators - 0.05 mto 26GHz. Harmonics and spurs are almost nonexistent in these units. Flatness is on the order of 1
By Don Bitters · #95275 ·
Re: Signal generators
Entry error typo due to excitement: "...even more exciting is if a decent board..."
By jafinch78 . · #95274 ·
Re: YTO Needed
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)
By Stephen Hanselman · #95273 ·
Re: Replacement battery for 8566A
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
By Stephen Hanselman · #95272 ·
Re: Signal generators
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
By jafinch78 . · #95271 ·
Re: Replacement battery for 8566A
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
By Adrian Nicol · #95270 ·
Re: Replacement battery for 8566A
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
By Don Bitters · #95269 ·
Re: Replacement battery for 8566A
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
By Ed Breya · #95268 ·
Replacement battery for 8566A
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
By Sean Turner · #95267 ·
YTO Needed
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
By rpoz28cam · #95266 ·
New phase lock board for 8753ES - qualitative first test
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
By Peter Gottlieb · #95265 ·
Re: HP8753ES versus HP8753D
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
By Steve <steve65@...> · #95264 ·
Signal generators
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
By Reginald Beardsley · #95263 ·
Re: Looking to connect with other 4396B owners
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
By Tam Hanna · #95262 ·
Re: NVRAM 28-Pin Encapsulated Package DS1230Y and 6811B
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
By Greg Muir · #95261 ·
Re: HP8753ES versus HP8753D
https://www.kirkbymicrowave.co.uk/Everything-you-wanted-to-know-about-the-HP-8753-VNA/
By pianovt · #95260 ·
Re: Looking to connect with other 4396B owners
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?
By markhaun2000 · #95259 ·
Re: Looking to connect with other 4396B owners
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
By Tam Hanna · #95258 ·
Re: Understanding the 8753ES frequency loop
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
By Peter Gottlieb · #95257 ·