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68896

Re: [Bulk] Re: [Bulk] Re: [hp_agilent_equipment] HP 53132A and Addin

Todd, I would appreciate some pictures of your ‘innards’ if you have time. In particular, I would like a picture of the underside/label of the power
J. L. Trantham
7:17 PM
#68896
 
68895

Re: Need Help with HP8640B Counter

Hi Dennis, I'm looking at A8A2 U1B - Counter/Lock Board Assembly (08640-60027). Pin 13 is CLR for that f-f. That f-f has D, T, Q, !Q, S, and CLR. I think
Barry
7:04 PM
#68895
 
68894

Re: [Bulk] Re: [hp_agilent_equipment] HP 53132A and Adding Opt 010

Joe, I have a 53132A with the opt 010. I do not have any internal pics but if you need some, I can try and make some time this week. I bought a couple boards
Todd Micallef
6:49 PM
#68894
 
68893

Re: [hp agilent equipment] Re: Which SA to choose?

All absolutely true, and worth clarifying before somebody misinterprets what I wrote as a suggestion to charge at C/10 without CV/CC foldback or end-of-charge
John Miles
6:48 PM
#68893
 
68892

Re: Need Help with HP8640B Counter

Barry, I was trying to follow your progress. Are you looking at A8A2A1, Counter Board Lock Assembly 08640-60380? My drawing shows U1B as an RS FF, You would
Dennis Czelusniak
6:45 PM
#68892
 
68891

Re: Which SA to choose?

No offense taken, John.  It was just a general purpose question.  I don't have any of these units, so I don't know anything about how their memory works or
Bob Stewart
6:15 PM
#68891
 
68890

Re: [hp agilent equipment] Re: Which SA to choose?

... He's right. The nominal (maximum in some cells) charging rate is C/10. More than that, and they liberate gasses and tend to vent and eventually dry out.
Harvey White
6:06 PM
#68890
 
68889

Re: [Bulk] Re: [hp_agilent_equipment] HP 53132A and Adding Opt 010

Tom, I've seen that. There's also one from China as well. http://www.ebay.com/itm/OCXO-frequency-meter-Option-OPT-012-FOR-AGILENT-HP-5
J. L. Trantham
5:55 PM
#68889
 
68888

Re: Need Help with HP8640B Counter

Correction: "The inputs to that gate are determined by U2B and the DELAYED LOCK line." Should be: "The inputs to that gate are determined by U28 and the
Barry
5:48 PM
#68888
 
68887

Re: Need Help with HP8640B Counter

Hi Frank, Yep - a 50-ohm terminator gives me a pretty decent 5 MHz square-ish wave. Using the EXT input with the lowest frequency setting and routing output to
Barry
5:43 PM
#68887
 
68886

Re: [hp agilent equipment] Re: Which SA to choose?

I agree with both of you. If you need to save the setups or any custom programming, it might be better to disable the charging and use a Li primary cell. I
Tom Miller
5:29 PM
#68886
 
68885

Re: HP 53132A and Adding Opt 010

Hi Joe, This guy in Poland is selling a board with a Moran OCXO and does not mention any power supply changes.
Tom Miller
5:25 PM
#68885
 
68884

Re: [hp agilent equipment] Re: Which SA to choose?

Hello John,C/10 may be a good charging rate, but it is definitely NOT a good trickle / maintain rate. It will lead to overheating and sharing of the cells'
Brian Clarke
5:21 PM
#68884
 
68883

Re: HP 53132A and Adding Opt 010

Another thing I just noticed on the pictures on the Keysight website regarding the two power supplies, the ‘standard’ power supply shows the gray and white
J. L. Trantham
5:06 PM
#68883
 
68882

Re: Need Help with HP8640B Counter

Yes, that's exactly what I did; however, when I was talking about a low frequency, I was talking about something several times lower than the lowest frequency
Barry
4:55 PM
#68882
 
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