¿ªÔÆÌåÓý

  1. HP-Agilent-Keysight-Equipment
  2. Messages
Messages Topics Expanded
Date
Re: 410B Heater Voltages
Well, you answered my question, namely how hot do the probes get. The EA35 draws slightly more power than the 2-01C but both are close to 2 Watts so probably probes with either will feel the same. I
By Richard Knoppow · #144904 ·
Re: 410B Heater Voltages
P = I x E 6.3V x 0.3A = 1.9W The probe's body provides a bit of heat sinking, but the 2W has to go somewhere. Cradle your hand around a 2W resistor running full power, and get back to me ;-) Heat is
By Chuck Harris · #144903 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
Also, Sprague put out a series of what were called "Service Sheets" or something similar that went into detail on the performance of various series of their capacitors - they are very scarce and it
By Harold Foster · #144902 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
I uploaded several Sprague catalogues that have a limited amount of information on various models: /g/HP-Agilent-Keysight-equipment/files/Components%20&%20Connector%20Catalogues Also
By Harold Foster · #144901 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
Have you looked at this? http://everyspec.com/MIL-PRF/MIL-PRF-030000-79999/download.php?spec=MIL-PRF-39003L.010306.pdf [email protected]> wrote:
By Hugh Gilbert · #144900 ·
410B Heater Voltages
I posted before about the heater voltage for the two different RF rectifier diodes and noted that indirectly heated tubes are supposed to be run close to the specified voltage. I note that this isn't
By Richard Knoppow · #144899 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
my goof: most likely: Tantalum glass sealed (dry ?) ?(? Not:? steel, silver, Aluminum ? ) Axial capacitors,
By gren · #144898 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
.... and for .pdf's of? the?? CS-13?? series & any other Mil Spec hermetic glass sealed axial caps. thank you !
By gren · #144897 ·
Re: Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
Yes, I have seen the Vishay "Sprague 150D" specs: https://www.tedss.com/DataSheets/Sprague-150D-Series-Tantalum-Capacitors.pdf -- am looking for the actual Mfr. catalogs of the original older ones
By gren · #144896 ·
Looking for .pdf of catalogs with P/N's ( Mallory, Sprague, etc.) for Mil Spec Hermetic Hermetically sealed capacitors used in Hp equipment
Trying to decipher the values, P/N's of Mil Spec Hermetic capacitors ! I need some .pdf of catalogs: These are the small cylindrical hermetically sealed ( steel, silver, Aluminum ? ) Axial capacitors,
By gren · #144895 ·
Re: HP8566B 500khz reference
To be honest, I'm never really certain when I should use the 50 ohm input or the 1Meg setting. Certainly if I'm taking a signal from a BNC anywhere on the analyzer and feeding into the scope directly
By Jinxie · #144894 ·
Re: HP8566B 500khz reference
That would explain the screws; thanks! The 500kHz pulses look fine now, having changed the test methodology. I am seeing intermittent 5V pulses of 5ms duration on HUL2, but they disappear when the
By Jinxie · #144893 ·
Re: HP8566B 500khz reference
The reason for all of the screws in the A6, A7, A8 sections is to prevent RF leakage which would show up in the noise floor and as spurs.You will know when you have not tightened down some of these
By Don Bitters · #144892 ·
Re: HP8566B 500khz reference
Thanks. I should really have posted a picture of the scope display. I'll do so tomorrow when I get a moment. I'm also awaiting the arrival of an SMB 'tee' in the post. This will enable me to break
By Jinxie · #144891 ·
Re: HP8566B 500khz reference
It's probably just fine. Lower frequency signals in a synthesizer are often from digital dividers and such anyway, so squarish can be OK, with the info on the edges of the waves. The manual should
By ed breya · #144890 ·
HP8566B 500khz reference
Hi all, There's a "500kHz Reference" test point hole cut into the clear plastic sheet which covers the PCB of the main unit of this analyzer. I'd expected this would be a sine wave when scoped, but
By Jinxie · #144889 ·
HP 3465A DMM Manual serial prefix 1621
Hi, Does someone have a PDF manual for this model covering serial prefix *1621* ? Those I have found on line have a much earlier serial prefix , with significant circuit differences to 1621. Cheers,
By Antonio · #144888 ·
Re: HP8640B part 08640-60043
Thanks Tom. Yes, silly me. That should have been obvious, especially as I also bought the hybrid with it! Cheers, Renaud
By Renaud F5ZR · #144887 ·
Re: 410B Information wanted
To answer my own question, the data sheet for the EA53 shows it to have an indirectly heated cathode. In general, tubes with indirectly heated cathodes want to be operated at very close to the
By Richard Knoppow · #144886 ·
410B Information wanted
I posted recently about my ancient 410B, which I finally repaired. I have a question: My meter was modified for the Amperex EA53 RF rectifier. In the handbook it states that the filament voltage for
By Richard Knoppow · #144885 ·
7101 - 7120 of 151545