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Date
Re: Advantest R3767BH VNA date+time setting
Hi Dave and Jim, thanks for the emails. I do have the R3767BH manual, what you sent Jim was for what I assume the slightly more recent "G" version. Thanks anyway. Alas no info gleaned from a scan of
By Jesse Lackey <jesse@...> · #105134 ·
HP 652A Dial Calibration
After having the lubrication sieze the dial mechanism so tightly I could hardly move the dial on my 652A, I disassembled, cleaned, relubricated, and reassembled the entire mechanism. Naturally, I lost
By n4buq · #105133 ·
Re: Test Equipment For Sale
Hello Bob, Sorry, I do not have that unit anymore. I am in Los Angeles, Can. Thanks, Michael
By Michael Yellin · #105132 ·
Re: Test Equipment For Sale
Hi Michael, Do you still have the HP8560E and if so, where are you located? Thanks, BobH
By BobH · #105131 ·
Re: HP 53310A - Why did I not know about this sooner?
Greg, thanks for that. Now downloaded. John
By John Sager · #105130 ·
Re: HP 8656A A6 board U1 1020-2933 is bad
Dave, Thanks for the suggestion to search by the board assembly number. Richard WB4RSO
By Richard Hall · #105129 ·
Re: HP8562A Errors 304,335,317,333
Would Like to say Good news but? Managed to get the Analyser on the bench today for a quick check and looks as if 28Volts not there. Also getting that smell of Burning rubber so worried could be
By stur_mm · #105128 ·
Re: hp8640B_CR17_CR20_Hot
CR17 and CR20 show 0Ohm! Replaced by other type >> Works fine again. Now I also did found where the voltage goes. Thanks for support! 73 Armin HB9MFL
By Armin Roesch · #105127 ·
Re: hp8350b/hp83595a front panel mod
Tom, thanks; I just pm'd you. Best, Jan
By Jan de Jongh · #105126 ·
Re: Wanted operator serves manual for HP 8402B
Hi, There is one on eBay, unfortunately the overseas postage makes it quite expensive. Maybe someone in the US is willing to buy and have it scanned. I'm sure some of us would be willing to contribute
By Szabolcs Szigeti · #105125 ·
Re: Calibrate a 431c with 8477a?
Hi, Thanks. Yes, I live a little bit far away from your place. I have a 431C with a 8478B head. It seem to work, and shows sensible values, but I have no information on its state of calibration.
By Szabolcs Szigeti · #105124 ·
Re: hp8640B_CR17_CR20_Hot
A/B 23 goes to service sheet 23. This is the -5.2 V regulator and fan driver. There should be a 2 Amp fuse on the input of this board. 73 Glenn WB4UIV --
By Glenn Little · #105123 ·
Re: hp8640B_CR17_CR20_Hot
Armin, From my notes: almost a quarter of a century ago I had a similar failure. Just replaced the power diodes (3A) and all went fine. The A/B23 go to SS 23: the -5.2 V regulator. Let me know if you
By Harke Smits · #105122 ·
hp8640B_CR17_CR20_Hot
Main Fuse blown. Fuse replaced >> ON >> generator shows frequency and level correct. After 10 seconds smells very strange. It smells that C6 22nf (parallel main filter output) became faulty. All
By Armin Roesch · #105121 ·
Re: HP8562A Errors 304,335,317,333
hello Stu if you look on A2 on the side you see the LEDs for the PSU. All should be LIT. I am sure this is not a PSU issue. If you work through the 300/600Mhz chain with an osilloscope you can check
By Peter Hansen · #105120 ·
Re: HP8562A Errors 304,335,317,333
Peter, Ok from schematic I can see the 600MHz Oscillator --> Buffer --> /2 = 300Mhz --> Offset Loop Buffer. Is that correct? Is it the /2 device your talking about? The whole board seems to be a
By stur_mm · #105119 ·
Re: HP 8656A A6 board U1 1020-2933 is bad
Joking apart, there seems to have been a minor dump of similar Plessey Semi' parts on a certain web auction site recently.?? I was looking at a similar part number, but a divide by 10/11 chip last
By Dave_G0WBX · #105118 ·
Re: FS: HP 16700A LA!
Hello all, BTW: I am healthy. Well as healthy as a 65 year old senior citizen with Fibromyalgia can be. I do not have the Seasonal Flu, the Kung Flu, Measles, Smallpox, Rabies, or anything else that
By Richard R. Pope · #105117 ·
Re: HP 8656A A6 board U1 1020-2933 is bad
Hey Richard, Just sent you an email to see which Plessey chip you need. Please verify! 73Jeff KruthWA3ZKR
By Jeff Kruth · #105116 ·
Re: HP 8656A A6 board U1 1020-2933 is bad
I think I know too!? Daun ;-) ?Get BlueMail for Android ?
By Daun Yeagley · #105115 ·