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Date
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
For all that, one might assume that reading the manual "might" give s clue..2 block diagrams from the manual showing whats being measured and how its being manipulated
By jim · #120010 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
Look at the schematics, the step amplifier for example. It shows 2v/div for the steps. Connect an instrument amplifier to the Steps Out and adjust the gain. The deflection amplifiers are trickier but
By peter bunge · #120009 ·
Re: Placing Shelf on Casters for HP Equipment
Yes, in my experience with the Starcase racks, shelves that attach at all 4 corners to a lot to improve the stability.
By John Ackermann N8UR · #120008 ·
Re: Placing Shelf on Casters for HP Equipment
Yes, it was 'Point Of Sale' hardware. I bought both minicomputers, ten in counter LASER scanners along with 14 cash registers and 14 printers. Two complete systems, from two stores..They threw in two
By Michael A. Terrell · #120007 ·
Re: Placing Shelf on Casters for HP Equipment
A number of people have mentioned stability without proper loading and braces being a concern for these 4 post racks. It seems like using several shelves that are each fastened to all 4 posts and then
By Matt Huszagh · #120006 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
Hello, for me is one simple solution on the HP182T with dead CRT, I got ready X,Y output there is someone have put one 8 inch LCD display mods on X Y input? Thank you. Francesco Sent: Monday, November
By Francesco · #120005 ·
Re: HP 412AR Leads
https://www.radiomuseum.org/r/hp_dc_vacuum_tube_voltmeter.html second photo shows that BNCs can be fit into the holes for the fixed leads.... Might be a nice practical improvement.
By John Griessen · #120004 ·
Re: HP 412AR Leads
Are they actually coaxial on the 412?? Wow, I didn't realize that. I stand corrected. So, ok, the OP will need to get some coaxial cable rather than single-conductor silicone probe wire. -Dave
By Dave McGuire · #120003 ·
Re: HP 412AR Leads
It's not that simple.? The leads are coaxial cables with terminations such that four wire resistance can be done.? The manual shows it but you will need some special cable. Bob
By Bob Albert <bob91343@...> · #120002 ·
Re: Placing Shelf on Casters for HP Equipment
I take it POS stands for Point Of Sale, not Piece Of S***.? When I was in engineering school in the 1980s, we used the DEC Pro 350 computers, and they actually had an operating system called pOS!?
By Jim Ford · #120001 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
hi, Just to pull the conversation back to the?? *electronics*? of the replacement of a XYZ CRT with an LCD ?? { rather than the programming or software, for now }. Does anyone have any technical
By gren · #120000 ·
Re: HP 412AR Leads
The 412AR dates back to well over half a century ago; you will not likely find "HP 412AR leads". Your best bet is to get some nice silicone-insulated wire and quality alligator clips and build a set
By Dave McGuire · #119999 ·
HP 412AR Leads
I picked up a HP 412 AR and the leads were cut off. Where can I find replacements, or build them.
By JIM Rogers · #119998 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
A lot of things have done that for me over the years. I have run nothing but linux since 1999, won't have anything to do with that company if it's at all possible... -- Member of the toughest,
By Roy J. Tellason, Sr. · #119997 ·
Re: Placing Shelf on Casters for HP Equipment
Hi Dave Just an acknowledgment and a bit more info for the new be I was trying to be general and keep it simple as the person was only just introduced to 19 in racks Agreed light units can be
By Paul Bicknell · #119996 ·
Re: HP 401 c VTVM
Your body is a capacitor, charged to varying voltage as you move around. Any sensitive meter will jump around as you approach or withdraw. Dave Wise Sent: Sunday, November 07, 2021 10:34 PM To:
By Dave Wise · #119995 ·
Re: New member intro
Yeah I think many people inexplicably interpreted your initial post as "I want to get rid of all of this stuff". It was actually pretty clear that this was not your intention. -Dave -- Dave McGuire,
By Dave McGuire · #119994 ·
Re: New member intro
Real quick note. I've gotten many inquiries on the Model M keyboards. They are keepers...I use both of them every day.
By Chris Wilkson · #119993 ·
Re: Placing Shelf on Casters for HP Equipment
Supporting from those wings (commonly called "ears") is referred to as "cantilevered mounting". This is actually very common, acceptable, and the designers' intentions for many things. You'd not
By Dave McGuire · #119992 ·
Re: Placing Shelf on Casters for HP Equipment
Yes, I forgot to mention in my earlier post that I acquired all three of my racks for free. With some patience and a lot of trolling, one can usually find a suitable rack. I know that they are around
By Dave Daniel · #119991 ·