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Re: Advice on Accessories for HP Equipment
An ovenized XTAL based or PLL unit at 10Mc should be easy to find. Just Google it. I dont know if any of the new AWGs can hold 1ppm or not. As to testing, my first suggestion that a proper room is the
By David Campbell <k_8_b_y_p@...> · #103677 ·
Re: Advice on Accessories for HP Equipment
Cheap NFP are typically not calibrated or accurate. I might have an extra hp NFP system that I could spare¡­ and it is in cal. Locking to a gps would yield decent accuracy usually unless you are way
By Pete Manfre <pmanfre@...> · #103676 ·
Advice on Accessories for HP Equipment
I have two needs for upcoming projects, at most loosely related to one another. The total knowledge of this group makes me look like a complete neophyte, with only a few decades of experience, so
By Steve Hendrix · #103675 ·
Re: HP 651B Oscillator restoration and an OOPS!!
Aren't these children a bit excessive - maybe we should block both of them. Cummon guys - GROW UP Quoting "Dale H. Cook" <bridgewaterma@...>:
By Bruce · #103674 ·
Re: HP 651B Oscillator restoration and an OOPS!!
You have not tried to ascertain my professional experience, which exceeds yours by more than a decade, so I consider that reply flaming and shall block your posts. -- Dale H. Cook, GR/HP/Tek
By Dale H. Cook <bridgewaterma@...> · #103673 ·
Re: HP 651B Oscillator restoration and an OOPS!!
That sounds like the parts were long stored in a very poor environment. I have never seen that in the original caps in any of my 16 HP instruments of that vintage (13 working and 3 parts junkers).
By Dale H. Cook <bridgewaterma@...> · #103672 ·
Re: HP 651B Oscillator restoration and an OOPS!!
A. My comment is not about your claimed experience. B. It might not work if you do it, but when I, with 30 plus years of experience and NIST traceable gear do it, its dead accurate Its an instrument
By David Campbell <k_8_b_y_p@...> · #103671 ·
Re: HP 651B Oscillator restoration and an OOPS!!
Being an EE with manufacturing, parts buying and engineering experience, these caps didn't even make it past check-in against the invoice on Receiving they were that badly oxidised- so badly I could
By David Campbell <k_8_b_y_p@...> · #103670 ·
Q: Future Plus PCI-X probeable adapter for HP/Agilent 16700/16900 logic analyzers
Anyone know much about these?? ?Allows you to connect a 16700/16900 to a PCI card. I picked up three of them with a used system and was able to get the manual and software from the manufacturer but
By Tony Jones · #103669 ·
Re: 5350B - transmutation to a 5351B
Thanks very much Richard.....................................Don. wrote:
By donald collie · #103668 ·
Re: HP 651B Oscillator restoration and an OOPS!!
Why? How did you determine that the electrolytics needed to be replaced? I have many HP instruments of that vintage that still meet spec and have never needed to have any of their caps replaced,
By Dale H. Cook <bridgewaterma@...> · #103667 ·
Re: HP 651B Oscillator restoration and an OOPS!!
David Campbell wrote on 3/6/2020 10:14 AM: <snip> Hello, Dave-- Were there any date codes on the Sprague caps? Thirty years ago might register as, for example, 2690 (i.e., the 26th week of 1990).?
By Brad Thompson · #103666 ·
HP 651B Oscillator restoration and an OOPS!!
651B 1975 edition. Replaced all of the electrolytics and tantalums, quite a chore to get the exactly correct values Several caps were replaced with two or three in parallel. Same or better tolerance
By k_8_b_y_p@... · #103665 ·
Re: 5350B - transmutation to a 5351B
I¡¯ve posted the information related to the frequency response change for the 535x series a couple of years ago but to sum it up again, You do have to change the switch/jumper position AND you have
By Richard Parrish · #103664 ·
Re: Metrology Grade adapters - HP/Agilent 1250-1745 and 1250-1740 - insertion loss ?
HPAK don't quote insertion losses for precision adaptors bigger than 1mm. One must assume they are insignificant?compared to the return loss / SWR. Robert G8RPI.
By Robert G8RPI · #103663 ·
Re: 5350B - transmutation to a 5351B
Hi Don. No worries. I also plan on trying the DIP switch (or jumpers) on my '50 and see if it can do above 20 GHz. I'm limited to 24 I think with my 8350 which is my current project. Will post
By Mark Bielman · #103662 ·
Re: 5350B - transmutation to a 5351B
Thanks Bob,Mark, and Askild. I apologise for taking so long to reply - this is due to the different time zones. Yes, the `52 has a different sampler than the `50,or`51. The `50,and `51 have the same
By donald collie · #103661 ·
Re: Upcoming Stuff Day event at Sphere Research
I had to order and ship to my work, they would not deal with my home address. Fortunately i work for a custom magnetics company that supplies inductors and chokes to Keysight lol.
By Dana Smith · #103660 ·
Re: Metrology Grade adapters - HP/Agilent 1250-1745 and 1250-1740 - insertion loss ?
Hi Dave, Yes, I meant 1750 not 40, typo :) they are parts of many cal kits and available separately too. I've found the part numbers in various HP adapter catalogs and manuals but no indication of IL
By Tim Tuck · #103659 ·
Re: 5350B - transmutation to a 5351B
The '52 has a different MW sampler (might be screened for upper frequencies) and a different input connector assembly. mark
By Mark Bielman · #103658 ·