¿ªÔÆÌåÓý

Date
Re: (OFF TOPIC) Manual request
[hp_agilent_equipment] <hp_agilent_equipment@...> wrote: Ah, my bad, one day maybe I'll learn to read to the end... The HP 3440A looks like a pretty cool instrument though :).
By Sigur?ur ?sgeirsson · #83163 ·
Re: HP6034 PSU Q1, 2 fet
Gents There is no argument that one has be very careful when working around HV circuits. 300+ DC rail falls into this category. Soooo, to address this I just ordered a ADP25 differential probe good to
By KI6EZ · #83162 ·
Re: HP 8648B and an off topic request.
Hi John Thank you for your suggestion, however, the fault in the 8648B is not in the RF portion but in the uP display/control circuitry which is totally different between the 8920A and the 8648B. I
By george edmonds · #83161 ·
Re: HP6034 PSU Q1, 2 fet
My comment was not made regarding the use of a scope, but, for safety when working on any circuity that is directly connected to the incoming mains/utility supply. It was not made to question your
By george edmonds · #83160 ·
Re: HP6034 PSU Q1, 2 fet
No, sorry it isn't. There are lots of strategies that will work just as safely. Using a pair of adequately rated 10x probes, and the ADD invert mode on your scope is one of them, and is precisely why
By Chuck Harris · #83159 ·
Re: HP6034 PSU Q1, 2 fet
Hi Chuck An isolation transformer is required equipment no just a good idea. 73 George G6HIG ________________________________________ Sent: 30 April 2017 02:18 To: hp_agilent_equipment@...
By george edmonds · #83158 ·
Re: HP/Agilent 8563E Spectrum Analyzer under Remote Control
Hi Tom, I have now read the Newest AN 150 and in particular a part to which you earlier referred (Thanks for that). Section was about Detector Types, and how that relates to the Data Dump. It's
By bill.lauchlan171@... · #83157 ·
Re: 3478A multimeter Spare display needed
No it doesnt seem to be. However one of the members here kindly offerd me one from his broken one. ---- 'Tom Miller' tmiller11147@... [hp_agilent_equipment] skrev ----
By Magnus Arvidsson · #83156 ·
(OFF TOPIC) Manual request
Siggi Thanks for the plug....But what Dave M is looking for is a BALLANTINE 3440A ( which we don't have) The one you saw was which we do have is an HP 3440A which would be more on topic :-) Dave I
By Dave / NR1DX · #83155 ·
Re: Manual request
Looks like Artek Manuals has it. See < http://artekmanuals.com/manuals/hp-manuals/>. [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
By Sigur?ur ?sgeirsson · #83154 ·
Repair rights
Forwarded from Tekscopes.
By David C. Partridge · #83153 ·
Re: HP6034 PSU Q1, 2 fet
That is typical of a problem where a full wave doubler is working half wave. This is one of those jobs where an isolation transformer is a good idea. You can get by without by using two probes, and
By Chuck Harris · #83152 ·
Re: HP 8648B and an off topic request.
George, Some of the boards in the 8648 are very similar to those in the 8920. The Component Level Information Packet Manual Part Number: 08920-90107, has schematics. It is (or was) on Keysight.com.
By John Gord · #83151 ·
Re: HP 8648B and an off topic request.
Hi Don I now understand your email, having looked at the available HP manual, I will probe around the display connector and the RPG connector. However I suspect that without component level
By george edmonds · #83150 ·
Re: HP8970A automatic Noise Gain meter
Hi Chuck, Thanks for your comments on this. I will seek for a suitable battery to replace it. Studying the RAM chip data sheet learns that the data retention threshold voltage is 2V . Therefore 2,8V
By Herman van Rees · #83149 ·
Re: HP6034 PSU Q1, 2 fet
Hi The DC voltage across the AC to DC stage storage capacitors will give a good indication of the health of the storage capacitors as you vary the output load. These capacitors must be high ripple
By george edmonds · #83148 ·
Re: HP 8648B and an off topic request.
Hi Thank you for your reply, I still do have WinXP sp3 machines, however, the 82357B adapter is not easily available in the UK. The only ones listed on a famous action site are from China and vary in
By george edmonds · #83147 ·
Re: HP6034 PSU Q1, 2 fet
Known good HP 6038A #1 Vout = 23.5Vdc Iout = 5.5Amps Input Filter out: Vdc = 317.5Vdc Vac = 1.48Vac (HP6034A = 12.2Vac!) #2 Vout = 23.5Vdc Iout = 9.5Amps Input Filter out: Vdc = 310.9Vdc Vac = 2.58Vac
By KI6EZ · #83146 ·
Re: HP 8648B and an off topic request.
Hi Don Thank you for replying to me, it is much appreciated. First I have never seen an extension card that would work with this generator, the three plug in modules use a 9 pin D for the power and
By george edmonds · #83145 ·
Re: HP 8648B and an off topic request.
I've successfully run the 8648 calibration and motherboard utilities on WinXP SP3 w/Agilent IO v16.x and 82357B USB GPIB adapter. No special hacks needed other than it only worked on a physical
By Colby Burkett · #83144 ·