开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
Date
Re: Anti Static Vacuum Cleaners
In general, it is not a problem. The thing with static electricity and vacuum cleaners is, though. What happens is the dust inevitably has a charge, and when it gets dragged through the hose, it
By Chuck Harris · #86339 ·
Re: Anti Static Vacuum Cleaners
I looked around for something similar a while back. I was thinking of the vacuums used to clean out toner from printers (we used to have these when I worked for STK Printer Ops). They had small
By Dave Daniel · #86338 ·
KNOBS HP1701 SCOPE
HELLO to the Group... Recently aquired a slightly damaged 1701 scope. The three knobs on the time base selector were missing, and all three shafts were bent..Through some subtle persuation, and
By sl45000@... · #86337 ·
Re: Anti Static Vacuum Cleaners
Yeah, static rated vacs are a royal pain. Easy way? Go outside with compressed air! :) Or build a box with pegboard on top and an inlet for a shop vac. Also good for sanding on and not getting
By bownes · #86336 ·
Anti Static Vacuum Cleaners
Greetings, I was working on an HP 438A Power Meter yesterday which was absolutely filthy inside. This thing must have been run 24/7 in a filthy environment over the years. I had to replace the fan,
By Dave Smith · #86335 ·
OT Omni Spectra Semi-Rigid Tools
Recently I obtained an Omni-Spectra Semi-Rigid Tool set for use to attach SMA connectors to .141 and other semi-rigid coax..... The set was called a T-200/400 set. I also see on Ebay a T-450
By Daniel Nelson · #86333 ·
Re: 2225a gpib inkjet
Had (or probably still have somewhere) 1 or 2 of the parallel versions of them way back in 1990ish timeframe. I remember when you start a new cartridge, you use something to push the ink bladder in
By Andrew Hakman · #86334 ·
Re: HP 3455A stability issue
I believe the creep is normal in a 3455A—the Autocal circuitry is designed to correct for the creep. The 3456A uses different circuits and doesn't creep, so it doesn't need the Autocal circuit. I
By Jeremy Nichols · #86332 ·
2225a gpib inkjet
So I’ve been asked to help dig out a house of a deceased electronic, test equipment and ham radio hoarder. One of the things it turned up while going through the many many boxes was 3 HP2225
By bownes · #86331 ·
Re: Looking help with HP 3322HB 110 dB programmable attenuator
I believe these are the common HP design with solenoid coils driving two plungers that switch the pads in and out. If you have not overloaded the 10 dB section, then likely the problem is with some
By Daniel Nelson · #86330 ·
HP 3455A stability issue
Hi All, Have a 3455A 6.5 digit multimeter that I have finally gotten up and running after some hiccups.? While trying to go through some of the cal procedures, I have found the unit does not stay
By Chris · #86329 ·
Looking help with HP 3322HB 110 dB programmable attenuator
Hi all,?The HP 3322HB 110 dB programmable attenuator in my home lab 8671B 2-18 GHz Generator has developed a bad 10 dB section. Is this repairable if disassembled? Does anyone have one they'd be
By [email protected] · #86328 ·
FS: NOS in Box 20, CINCH 50-20SN-1 Connectors
I found a box of 20 brand new in the box CINCH Model 50-20SN-1 connectors which are used in a lot of HP etc test equipment. I was able to find them on Digikey and Allied etc for about $4.50/ea. Here
By Gedas · #86327 ·
Re: 3586B Selective Voltmeter Help trouble shooting
I'm a little confused by that, if I remove A70 and close the switch and it then the unit runs a proper CAL, wouldn't that say A21 and A22 were good? Thanks, Lamont P.S. I'm
By lamontcranston17 · #86326 ·
Re: 3586B Selective Voltmeter Help trouble shooting
The keypad switches have a leaf spring that has to buckle in order for the switch contact to actuate. Those that make a loud and forceful clunk have sticky grease that is effectively gluing the leaf
By Chuck Harris · #86325 ·
Re: 3586B Selective Voltmeter Help trouble shooting
Lamont, Associated circuitry in A21, A22, would also need to be verified before you conclude defective A70. Dennis --------------------------------------------
By czelusniakd · #86324 ·
Re: 3586B Selective Voltmeter Help trouble shooting
I have not noticed any dead keys, but I'll run another check. I have some that click with slight force and others that work but don't click. Thanks, Lamont
By lamontcranston17 · #86323 ·
Re: 3586B Selective Voltmeter Help trouble shooting
I have an A70 board, so not a switch problem, I have removed, wiped doen the edge connector, it already looked good and reseated it. That didn't help. As a troubleshooting method can I remove the A70
By lamontcranston17 · #86322 ·
Re: 5342A: blown sampler?
I’ve done the connector change and, using a good quality SMA, I have two 5342As that count reliably to 26GHz and one that just won’t count reliably above about 21GHz. I don’t have a 5343A to
By Steve - Home · #86321 ·
Re: 5342A: blown sampler?
Hi Harke, oh, interesting. So the upgrade to 26 GHz, which would actually be a 5343A, changes only the connector? :-) This is funny, because I use a HP 8563E spectrum analyzer at work, which operates
By Tobias Pluess · #86320 ·