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Re: wanted: HP 70K MMS (hp 70000) software: whole system software, individual module software, ROM software, personality software, etc.)
Hi all I have a few disks of 70000 software unfortunately I do not have the ability to verify the contents / copy or transfer as listed below Description Function Equipment Disk Part Number format
By Paul Bicknell · #90800 ·
3325A power supply overheating
I have a 3325A which recently stopped working.? I've traced the problem to a very high load from one particular PCB and will track down the (most likely) bad tantalum. However, I noticed that the
By Peter Gottlieb · #90799 ·
PCMCIA FLASH and HP8920B
I have this slew of PCMCIA FLASH memory cards and I need help in determining which if any will work with my HP8920B. The manuals are not very descriptive and I don't want to damage anything in trying.
Re: 11729C oscillations
Is the preamp circuit really that different between versions? I would think they'd be close either way. Can you see the oscillations on the output, without any other signals applied? If so, try
By Ed Breya · #90796 ·
Re: wanted: HP 70K MMS (hp 70000) software: whole system software, individual module software, ROM software, personality software, etc.)
Does anyone have ?*any* ?HP 70K MMS (HP 70000 system ) ?software to deposit into an Open archive ? ? ?Anyone know of any HP 70K MMS era related HP Engineers, Service Techs, or MMS end-users that
By gren · #90795 ·
Re: HP 8656B
hi Chuck, As a roadmap, how about ?~3 photos ?of the 8656 ?A10 board & C18, with the C18 markings & associated physical space (with a ruler) ? thank you, rick
By gren · #90794 ·
Re: HP 8656B
Yes. I (and everyone else here) uses decibels every day, but isn't it odd that we use 1/10th of a Bel as a "base unit" of sorts? We talk about 0.1dB or 0.01dB all the time, but why not a centiBel or a
By Dave McGuire · #90793 ·
Re: HP 8656B
Lets not forget deci. Sent from K5JLR
By Leon Robinson <leon-robinson@...> · #90792 ·
Re: HP 8656B
Hi Brian, do you remember from a long time ago when a 8pF cap would be labeled as a 8 mmF on the schematic. Gedas, W8BYA Gallery at http://w8bya.com Light travels faster than sound.... This is why
By Gedas · #90791 ·
Re: HP 8656B
A 'mil' is also used in US money. It is 1/1000 of a dollar and used for tax rates along with other special transactions. Michael A. Terrell
By Michael A. Terrell · #90790 ·
Re: HP 8656B
So I am of an age that I grew up using Imperial measures and pre-decimal money. I have also lived and worked both sides of the Atlantic and in most things I am almost bi-lingual! The one thing that
By Adrian Nicol · #90789 ·
Re: HP 8656B
Hello Dave, I think that avoiding use of mF is for the reason that a long time ago, ie, when I was young, a capacitor marked 8 mF was known to be 8 microFarad. The use of uF is a Johnny come lately,
By Brian · #90788 ·
Re: HP 8656B
It is strange why mF are rarely used. We use mV, mA, m ohm, mH, mm, but when it comes to capacitors one uses fF, pF, nF, uF and farads, but rarely mF. A capacitor of 0.022 F is rarely called 22 mF,
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #90787 ·
Re: HP 8656B
Sure, I can't disagree with that. Yebbut...moving the unit there? Why not just replace the period with something more visible? Even 'X' would do. Even '/'. But don't move the unit...that belongs to
By Dave McGuire · #90786 ·
Re: HP 8656B
On Fri, 24 Aug 2018 16:25:05 -0400, you wrote: >On 08/24/2018 09:13 AM, Kuba Ober wrote: >> I somehow didn¡¯t run into the xxxF notation, where the first digit is 10^-1. Writing 13mF as 013F would be
By Harvey White · #90785 ·
Re: HP 8656B
...'cause THAT'S practical in the 20th century.. -Dave
By Dave McGuire · #90784 ·
Re: HP 8656B
M is the Roman numeral for 1000. Dave Wise
By Dave Wise · #90783 ·
Re: HP 8656B
This is also done in finance where M is 1000 and MM is million. Really odd!
By Peter Gottlieb · #90782 ·
Re: HP 8656B
On 8/24/2018 4:25 PM, Dave McGuire wrote: <snip> > I never did understand the point of the 0F13 notation and have never > particular cared for it. Arbitrarily moving the units into the decimal >
By Brad Thompson · #90781 ·
11729C oscillations
I'm having some problems with some oscillations in the low noise amplifier of my 11729C with serial prefix 2329A. The frequency is around 27MHz, and I beleve it is from the pre-amp section of the low
By Thomas S. Knutsen · #90780 ·