Re: HP 8340B repair
I would like to make upper frequency to 26.5ghz output from my 8340A that can only 20ghz now 22.09.2022, 19:16, "Richard Parrish" <richard@...>: The calibration list is specific to the
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Roman Luschik
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#129722
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Re: HP 400E sticky needle
It's a very old glue, made from the phosphoprotein casein (found in mammalian milk) ... the glue is made by lowering the ph of the milk, separating the folded protein, and the bringing the ph of the
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Roy Thistle
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#129721
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Re: Any interest in HP871xA/B/B firmware modification for enabling options?
Sounds like a good idea, but you can also just request the option keywords from me; I provide them for free. The vector capability is not enabled by a keyword, but by another relatively simple process
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Caesar Valenti
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#129720
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Re: HP 8340B repair
The calibration list is specific to the instrument it was in. Copying another set of cal constants into another unit is not advisable. Follow the leveling calibration procedure in the manual, the cal
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Richard Parrish
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#129719
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Re: Replacement Meter Movement for HP-410C
In most HP meters of this era, the dial scale was photographically printed in a special machine designed to make the scale match that specific meter movement. (That¡¯s why the scales sometimes flake,
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Jeremy Nichols
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#129718
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Re: HP 8340B repair
The missing cover won't make a lot of difference in the short term. Before you go much further, you might try the automatic peaking routine. Push the shift button and then the peak button and the unit
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Richard Parrish
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#129717
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Re: HP 8340B repair
Hello with my device was a calibration list, in attachment if someone has such from 8340A(B), please send
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Roman Luschik
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#129716
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Re: HP 8340B repair
with my device was such a calibration list, in attachment if someone has such from 8340A(B), please send 22.09.2022, 11:28, "fab-lp@..." <fab-lp@...>:Hello All, I recently acquired a
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Roman Luschik
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#129715
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Replacement Meter Movement for HP-410C
I have a early HP410C meter that needs a replacement meter movement. As I was searching for this, I was looking at other HP equipment and was wondering if folks here know if I could use the movement
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Paul Dulaff
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#129714
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Re: HP 3400A, After replacing two bad caps, I still have meter bounce on some ranges.
It's the next morning, I powered up the previously bouncy (on some ranges) meter and it is not bouncing at all. I'll follow up for a few days before I decide,"if it ain't broke don't fix it" is the
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Mikek
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#129713
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Re: HP 8013B Pulse Generator replacement pilot lamps
Thanks for the help everyone. I was able to find replacements soon after I posted this question. Best Regards, Craig Petersen.
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Craig Petersen
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#129712
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Re: Any interest in HP871xA/B/B firmware modification for enabling options?
Hi Jim, I think that any new idea is always welcome even if the topic has already been dealt with. I own a modified 8713C but I'm curious. Have a nice day. Maurizio
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maurit
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#129711
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HP 8340B repair
Hello All, I recently acquired a HP 8340B. Unfortunately it's not fully functional. There is a problem when it crosses bands 3 and 4: almost no power and and the power dbm indicator displays only
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FHTV7
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#129710
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Re: Info about 9100-3451 or 9100-3882 HP 3552A data line test set Power Transformer
Hello, Ciro & people. After 11 years, I hope you were able to fix your 3552A. I have inherited an almost empty box of HP3552A, but it has the line module, although I don't know its characteristics, to
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Teo.P
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#129709
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Re: HP 432A drift
Solved. Problem was poor soldering of pin 7 of the auto-zero assembly.
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Steve J. Noll, WA6EJO
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#129708
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Re: HP 3400A, After replacing two bad caps, I still have meter bounce on some ranges.
I'll look over the solder joints on the tube tomorrow. I thought it might have been corrosion. Thanks, Mikek
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Mikek
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#129707
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Re: HP 3400A, After replacing two bad caps, I still have meter bounce on some ranges.
The first 3400 I looked at had a resistive C203 and C205, on the A2 board, I checked the others on that board and checked all caps on the PS Board. I'm sure I checked a few others too, I had a busy
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Mikek
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#129706
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Re: HP 3400A, After replacing two bad caps, I still have meter bounce on some ranges.
Mine did something similar to this and it wound up being cracked solder joints on the Nuvistor tube socket, reflowing them fixed this issue, also reseat the tube a few times. However you may still be
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Craig Petersen
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#129705
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Re: HP 8013B Pulse Generator replacement pilot lamps
That's a good trick. Not really necessary in this case though; 6839 is a pretty common bulb that's made by a few different manufacturers. (VCC, JKL, etc) -Dave
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Dave McGuire
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#129704
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Re: HP 8013B Pulse Generator replacement pilot lamps
One way to find info like that is to look up the HP part number on the net with google and find it listed on some government supplier site. That will get you the NSN number. You can use that number to
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Paul Amaranth
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#129703
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