开云体育

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
toby@...
Sent: Saturday, June 30, 2018 1:41 PM
To: [email protected]
Subject: [TekScopes] Searching for post about Tektronix front panel
fabrication/printing process

Sorry for the vague post, but I remember in the last year or so,
somebody giving a detailed description on how the Tektronix front
panels were produced for durability, with respect to anodizing, silk
screening, etc. Probably Dennis? or Chuck? … I rummaged through my
archives but didn't find the post. If the author remembers it, maybe
they can link it in this thread?

I did find some older posts by search though, but I think the one I
mean is much more comprehensive.
e.g. /g/TekScopes/message/111625 ;
/g/TekScopes/message/101696

Thanks for any help.

From: Harvey White <madyn@...>

All in the technology of the times. Note that they did not imagine
any kind of technology (interface wise) that was different from what
they had, just that it did futuristic stuff.

From: Pete Lancashire <xyzzypdx@...>
Sent: Jul 10, 2018 9:26 PM
To: [email protected]
Subject: Re: [TekScopes] Low cost Scope-Mobile alternatives?

My interest is a cart that can hold the heavier stuff and rack with like
the 11k Scopes. The next card I need will have to hold an HP synthesizer
that weighs 70 lb and hopefully a spectrum analyzer on top of that that has
a total weight of 95 lb
The Tek cart that came with my 11403A I am going to try to put on top of it
11301 a.

This old test equipment is darn heavy

From: Al Holt <grovekid2@...>
Sent: Jul 10, 2018 8:29 PM
To: [email protected]
Subject: Re: [TekScopes] Low cost Scope-Mobile alternatives?

On Tue, Jul 10, 2018 at 05:19 pm, Michael A. Terrell wrote:

How about a cheap welding cart, or make a copy of the design from the online manual?

The welding cart is nice in it has a sloping front, but the one I looked at Harbor Freight just doesn't have the depth to handle the 7603 from what I could tell.

From: "Ed Breya via Groups.Io" <edbreya@...>

Haha - I just looked at those Harbor Freight ones someone linked. That's the kind I was picturing, whether plastic or metal. Some are kind of spendy, but if you look at the coupons, there's a 3-shelf steel one for $40 on sale (regular $50). There's a 2-shelf steel one for $38 regular, so you could use your 20% off coupon to get it around $30. The 3-shelf will be much sturdier, however. The best thing to do with HF stuff is look at it in person to be sure it's of sufficient quality and function. In this price range, there's not much point to making your own.

From: "Ed Breya via Groups.Io" <edbreya@...>
Sent: Jul 10, 2018 7:58 PM
To: [email protected]
Subject: Re: [TekScopes] Low cost Scope-Mobile alternatives?

Are the real scope carts all that expensive? I've bought a few over recent years at flea markets and junk stores for around $10-25 typical. I was under the impression that the carts aren't in big demand anymore, and those I've gotten were sitting in stores for months, or still around near the end of a flea market, with no takers. The problem may be in the timing - when you need one, it's hard to find a deal. That's why I just get one whenever a good deal shows up, and worry about commissioning it later. I've got two uncommitted ones in stock right now, that will eventually be scoped up, but are storage shelves until then.

You should be able to fairly easily come up with a bought or homemade rig that will perform the needed function. Chances are that shortly thereafter, a real one will show up for $20. Oh well.

I hate those wire-frame shelving and cart systems, so would never recommend them for anything. I think a simple utility cart with casters and a solid tray top is the way to go, in new or used form. It's a very basic piece of equipment, so there should be plenty to choose from. You may even want to look at outdoor garden carts - some are quite sturdy.

Another semi-homemade option is to use the base cabinet of an old junked propane BBQ. I have made a number of benches and carts from these and almost anything else that rolls and is sturdy enough. You just have to come up with a wood top for it.

From: Albert LaFrance <albert.lafrance@...>

I've been watching some episodes of the outstanding US science-fiction TV
series "The Outer Limits", which aired from 1963-1965 (two seasons). The
settings of many episodes prominently feature electronic equipment,
typically in a scientific laboratory, military command post, space mission
control center, or a spacecraft.

Despite the fact that the show's opening title sequence begins with what is
probably best-known oscilloscope trace in history
(), I haven't seen a lot of
scopes in the episodes themselves, and the few that have appeared weren't
operating. A DuMont shows up from time to time, just sitting on a counter
or console as an afterthought. You'd think they'd at least be rigged up to
display the ever-popular Lissajous figures, but the series was pretty
low-budget.



One episode showed, in the background, a cart-mounted scope which had the
general form and panel layout of a Tek 500 series, but with a sort of white
cowling around the top and sides of the front panel. In another, there was
a rack-mounted 5-inch scope with a dark gray/green panel. I don't know what
brand either scope was.



In general, the electronics were a mix of real contemporary equipment and
stuff that was probably purpose-built as props. The real equipment
sometimes included those big multi-track analog tape recorders and vertical
pen plotters that were so popular in the early years of aerospace
development. The "prop" equipment was generally panels of meters, toggle
switches, pots/rotary switches and indicator lights; the meters and lights
were usually non-operational unless they had some significance in the plot.
A lot of them were in 19-inch racks or bench-type consoles.



A striking feature of these "prop" panels was the lack of labeling on any of
the devices unless, again, a particular device had a role in the story (e.g.
the radiation meter on an out-of-control reactor). But then, I guess a
scientist who's smart enough to invent a time machine or inter-dimensional
portal should be able to remember what switch does what.



Another electronics tidbit from the series: in one episode, a scientist had
developed a way to rapidly advance an individual primate's (including
human's) evolution, based on the premise that an organism's future form is
already encoded in its DNA and can brought out by the use of a machine built
for that task. To show a visitor how effective this technique was, the
scientist pointed to one of his successes - a chimpanzee seated at a bench
in a corner of the lab, quite convincingly using a VOM to troubleshoot some
piece of vacuum-tube electronics!