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Date
Re: Introduction
Took me a while to work out why a 16500C LA display wobbled when I pushed it further back on the bench. Eventually realised it was a metcal soldering iron supply, which still has a magnetic field even
By Adrian Godwin · #147274 ·
Probing deep and/or narrow into a given unit for troubleshooting
Hi all, I was wondering of asking for thoughts and ideas on probing deep into some units, or maybe just through a narrow clearance. What I'm thinking of is primarily for use with a DMM (vanilla
By Radu Bogdan Dicher · #147273 ·
Re: Introduction
Add in SystemVerilog if one is contemplating FPGA/ASIC work. DaveD KC0WJN Thanks for all the fish. ============================== All spelling mistakes are the responsibilty of the reader (Rick Renz,
By Dave Daniel · #147272 ·
Re: Introduction
Thanks for the feedback Roy. I really appreciate it. So I have a solid foundation of math/physics through my chemistry degree. Calc III, dif equations, quantum chemistry. The math I'm not worried
By Frank Mashockie · #147271 ·
Re: HP 141T Power Supply Help Needed
Replaced q15 and the crt is at least trying to do something. Ordered a hv probe but wondering if maybe this is related to deflection amps. Doesn't seem good so shut it down after the Pic. Focus
By Bill Berzinskas · #147270 ·
Re: Probe Cables for 16801A Logic Analyser
What Card do you have in it? I am pretty sure any of the later grey cables will work. Such as: https://www.ebay.com/itm/315689218821 168xAx, 169xAx,?1691xA ( which are used in various 198XX Units )
By William Stillwell - KI4SWY · #147269 ·
Re: Introduction
If your boss is not paying for it... It's expensive. 2 to 3 years to complete, on average. Say 50,000USD total cost, on average... and up... for many good US schools. Georgia Tech is... about the
By Roy Thistle · #147268 ·
Re: Introduction
Thanks! I can remember back at Marconi I once thought I had trashed an expensive (and brand new!) Mi 6500 amplitude analyser because I had set it down quite firmly on top of an old microwave sweep
By jmr · #147267 ·
Re: Free to good home, HP 5423A system + manuals and spares
Dave, Some info: I have working copies of the firmware tapes and can duplicate them to 3M QIC80 tapes. With some minor modification you can let the 5423/5420 system work with QIC80 tapes. The systems
By Rik Bos · #147266 ·
Re: Introduction
I agree, I found out the hard way when I was in my late teens with a scope and a PSU and couldn¡¯t figure out why I had fluctuation measurements/traces.... Never do it now. ? Regards Nigel Sent
By nigel adams · #147265 ·
Re: Introduction
The arrangement of equipment can be important in several ways; heat is one of them. Another is the radiation of magnetic fields from power transformers which can induce hum in stacked equipment.
By Richard Knoppow · #147264 ·
Re: Introduction
In case this is of any interest, in my first job (at Marconi many years ago) I was taught how to arrange RF test equipment on a workbench and anyone who didn't follow the official guidelines was soon
By jmr · #147263 ·
Re: Introduction
Yes, that's how I've set up my workroom. I don't really have much choice though as my workroom is quite small. If I put it all in this main workroom I doubt I'd be able to get into the room let alone
By jmr · #147261 ·
Re: Transferring waveforms from 54542a through GPIB
I do: :WAV:SOUR CHAN# or :WAV:SOUR WMEM# :WAV:POIN? :WAV:XINC? :WAV:XOR? :WAV:XREF? :WAV:YINC? :WAV:YOR? :WAV:YREF? :WAV:DATA? I loop through all channels and memory and if the channel or memory is
By Steven Maddy · #147260 ·
Probe Cables for 16801A Logic Analyser
Does anyone know the part numbers for the cables and probes for this analyser. I have some of the manuals but they dont say what cables to use, and no cables came with the unit when I purchased it
By richard@... · #147259 ·
Re: HPIB disk drive as a substitute for SRAM cards
Hi Jim, You are probably missing a driver. Finding one may not be easy. Also did you format the card as DOS or LIF? See
By Robert G8RPI · #147258 ·
Re: HPIB disk drive as a substitute for SRAM cards
SUCCESS!! I used this free editor https://freehexeditorneo.com/ to edit the PRC (procedure) file This (picture) highlighted in yellow was the critical spot to change from Card to Disk. I made sure to
By Jim · #147257 ·
Re: Introduction
Hi Burt, The tables do not touch the wall directly, I put a space of 8 inches (20cm), and this space contains a shelf with holes to let the wires pass through. Two 6-inch (15cm) side fans adjustable
By Yves Tardif · #147256 ·
Re: Introduction
In my "home-away-from-home" lab (see earlier picture) I also use wire shelving on wheels, but I don't put anything on them as fillers to keep the feet from being caught in the wires.? Here in
By Jeff Anderson · #147255 ·
Re: HPIB disk drive as a substitute for SRAM cards
Hi Robert, I do have an old Dell Latitude 600 with the correct slot. Although it recognizes the SRAM card it will not allow access for viewing and editing files. In particular I need to edit the PRC
By Jim · #147254 ·