I don't think there is a TH resistor in the entire building. There are some TH capacitors but they're pretty big Aluminums and have pretty heavy wire. If I need jumpers I just strip a length of wire.
When I do dead bug stuff, the bench is littered with cut-off ends, so it's natural to use them for hooking up just about everything.
If you need links more than an inch long for a proto, you're doing it wrong. ;)
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
I rarely design in a thru-hole part (except connectors) but we have a bin full of 1/4 watts in the lab, for breadboarding. All the popular values (51 ohms, 1K, like that) disappear first, so I use the oddballs.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
I have a set of Ohmite 1% resistor drawers from about 1988 that I've been refilling as needed, so I have at least 100 per value (they're mostly the 1% values nearest to the old 5% values).
They're right at my elbow at my bench.
Cheers
Phil Hobbs
Have you asked the aliexpress enclosure supplier who they like?
I went with Hammond for the first few (1457L1201EBK). If they sell well, we'll do a cost-reduction pass on the mechanics.
Cheers
Phil Hobbs
Phil,
For small quantities -- perhaps larger -- you can pay your local Staples, Office Depot, or whatever to do the job for you.
As for the black background, that just mees the label needs to have a white (or metallic, or whatever) background printed on it instead of leaving that transparent.
Enjoy...
Frank McKenney
--
My father ... drilled into me from an early age that if someone says
something is impossible, that just means it will take a bit longer
to achieve, and that the only failure in working with equipment is
if it fatally electrocutes you.
-- Seth Horowitz / The Universal Sense
At IBM we used to do the same (except they were .2W), but that was a long time ago.
That's what Cat6 network cable is for---I have a bin of cutoffs, and pull out individual pairs or wires. Of course you have to use the 'long distance', which is solid wire, instead of stranded that is usually used in patch cords.
We've done that, and the final labels are quite durable and cleanable, which is important in our biomedical environment. The problems are primarily in the adhesion of the paint to the transparency, and to the underlying front panel; and the dissolving of the finer artwork aspects in the paint; and finally the time required to make holes for all the connectors and controls in the rather tough mylar.
Of course this is for products that are _very_ custom, with larger production volumes there are many better alternatives.
-F
Thanks, good to know. I got some of ChesterW's inkjet-printable vinyl stick er material and cover sheets. (*) They came out _beautifully_, so that's th e plan of record for the first few dozen units, until BLH gets tired of usi ng X-Acto knives. (This is getting her out of having to stuff boards by han d, so she's fairly pliable.)
I've got the manual mostly done, so once I have a chance to take some prett y-looking performance plots, I'll post the finished product. Should be some time this week.
Cheers
Phil Hobbs
(*) They came from an Amazon shop called "Kustom Rides". When my wife saw t hat on the package, she thought I was having a somewhat tardy midlife crisi s. ;)
Have you ever heard of Hallmark? I used to have a shop near there, and I knew some of the workers. I have never dealt with them, but I've seen some samples that looked good. They also made custom membrane switches.
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I used to work with the head engineer at Magnode, to maintain their electronics. I haven't been in that area for quite some time, but I have seen their work. :)
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Castings are even cheaper, once you own the tooling. Of course the tooling for a casting costs about 5x that of an extrusion and one size doesn't fit all.
In the US, even. Must be expensive stuff.
They made a lot of extrusions for the appliance industry, when I dealt with them. They also mad heat sinks for several well known companies.
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I'm pretty sure all of ours are made in China. It's cheaper, even for prototypes. The heasinks for my latest projects have been machined, though.
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