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Re: Pozidriv screws on HP covers
We're all contributing very fragmented information. There's a pretty good Wiki topic about this: https://en.wikipedia.org/wiki/List_of_screw_drives Raymond
By Raymond Domp Frank · #129619 ·
Re: Pozidriv screws on HP covers
Vintage HP equipment certainly used Phillips head fastners. I wonder when they changed. With System II maybe? Having worked in aviation as well as electronics and also had an interest in cars I've had
By Robert G8RPI · #129618 ·
Re: E4982A Broken hard disk.
right.? I will buy another hard drive.? Because I don't have the program of E4982A, I need a ghost copy of another machine.? Bad hard drive.
By QuyetN <qnhn90@...> · #129617 ·
Re: HP displays, was Re: [HP-Agilent-Keysight-equipment] New STUFF added
No wonder I can't find them.? They're OEMed.?? That one plus delivery is a tad more than what I paid for a genuine 1990-0355 sealed in its original bag, shipping included, this week.? Unle
By Jeff Woolsey · #129616 ·
Re: Pozidrive screws on HP covers
Reed and Prince is NOT the same as POZI.? Reed and Prince is also known as Frearson.? From a web article about Frearson: "Also known as the Reed and Prince, this screwdriver is *similar to a
By freshndaire · #129615 ·
Re: HP 3335A Repair
Yes, be sure to trace signals along the path to the output. Attenuators often take a beating; try different settings to see if only some are dead. Also, I've encountered a few pieces of hardline that
By Tom Lee · #129614 ·
Re: Pozidriv screws on HP covers
Star drive and Torx are NOT the same.
By David C. Partridge · #129613 ·
Re: HP 3335A Repair
Could Be the attenuator -check the output at the hardline comming out of the RF unit. BE CAREFULL, the output can be quite high - +15 dBm. Cheers! Bruce Quoting Radu Bogdan Dicher
By Bruce · #129612 ·
Re: Looking for Agilent PNA old FW repo?
Hi all, I was looking for the first few revs to be specific: PNA_A0425.msi PNA_A0407.msi PNA_A0353.msi PNA_A0262.msi PNA_A0160.msi My E8357A was running windows 2000 and PNA FW A01.40. The manual says
By Kevin A. · #129611 ·
Re: E4982A Broken hard disk.
How did the hard drive fail? If it is an electrical failure on the digital board, you might be able to buy an identical hard drive and swap the board.
By Kevin A. · #129610 ·
HP displays, was Re: [HP-Agilent-Keysight-equipment] New STUFF added
I'm pretty sure I've located a 5082-7415, or at least a display that's very close. Strangely, in Radio Shack packaging: https://www.ebay.com/itm/134229880348 The pinout and general characteristics are
By Dave McGuire · #129609 ·
Re: HP 3335A Repair
Thank you, Patricio, and thank you very much, Tom. Hopefully, my PS repair gets reflected soon in a fully functional unit. I'm a bit disheartened, but I do very much appreciate your encouragement!
By Radu Bogdan Dicher · #129608 ·
Re: Pozidriv screws on HP covers
Yes. Look at the people who call Torx "star drive" with the same derision as you would the people who equate Phillips, PoziDriv, and JIS and call them all "crosspoints". -Dave -- Dave McGuire, AK4HZ
By Dave McGuire · #129607 ·
Re: HP 3335A Repair
Bruce, Thank you for pitching in. Yes, upon restarting the unit, it goes to 1MHz and -86.98dBm amplitude, which I think is default. Everything display-wise seems perfect. Except maybe the issue of no
By Radu Bogdan Dicher · #129606 ·
Re: HP 3335A Repair
Great News !! Ing. Patricio A. Greco Taller Aeron¨¢utico de Reparaci¨®n 1B-349 Organizaci¨®n de Mantenimiento Aeron¨¢utico de la Defensa OMAD-001 Gral. Mart¨ªn Rodr¨ªguez 2159 San Miguel (1663) Buenos
By Patricio A. Greco · #129605 ·
Re: Pozidrive screws on HP covers
Back in the '60's, while In the USAF, we knew these as "Reed and Prince" screw heads.? I've since noted the more commonly used term of Pozidriv's.? .
By Mike D. · #129604 ·
Re: HP 3335A Repair
Do you know at power up the output is ~ -80dBm - try setting the amplatude to 0dBm and be sure you reconnected the hardline from the RF unit to the attenuator. Any front panel diagnostics lit ???
By Bruce · #129603 ·
Re: HP 3335A Repair
Great news, indeed. Keep going, Radu! -- Cheers, Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford University Stanford, CA 94305-4070 http://www-smirc.stanford.edu
By Tom Lee · #129602 ·
Re: HP 3335A Repair
Great news, folks. After finding out both A15CR1 and CR2 were shorted, I replaced them with 1N4003s, and all rails are now coming online in spec (while having the board out, I also replaced all 10uF
By Radu Bogdan Dicher · #129601 ·
Re: Pozidrive screws on HP covers
I'm also appreciating learning on this! I had no idea. Many thanks to the OP. I also found out I actually have a couple of these tips for my "fine work" bench driver. A #1 and a #2. I used the #2
By Radu Bogdan Dicher · #129600 ·