¿ªÔÆÌåÓý

Date
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 ·
Re: Looking to connect with other 4396B owners
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
By Steve Hendrix · #95256 ·
Re: Understanding the 8753ES frequency loop
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
By Dave_G0WBX · #95255 ·
HP8753ES versus HP8753D
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
By Steve <steve65@...> · #95254 ·
Re: Understanding the 8753ES frequency loop
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
By pianovt · #95253 ·
Re: I'm officially lost now with this 8753ES
...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
By Dave McGuire · #95252 ·
Re: I'm officially lost now with this 8753ES
Yeah, but you have factor in the suits.
By bownes · #95251 ·
Re: NVRAM 28-Pin Encapsulated Package DS1230Y and 6811B
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:
By Pete Manfre <pmanfre@...> · #95250 ·