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| Test Equipment Anonymous (TEA) group therapy thread |
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| Vince:
--- Quote from: Messtechniker on July 04, 2022, 06:00:05 am --- --- Quote from: Vince on July 03, 2022, 11:36:02 pm ---Wow, think I found an interesting one here ! Just starting on sorting 60 or so DIL8 packages here. I found an IL300-F ... an opto-coupler. OK no big deal but... that's no ordinary photo-coupler, look at the datasheet, that's one hell of a fancy one ! --- End quote --- Just search this forum for IL300 for quite a lot of information on this device. I use it all the time for isolating audio. See schematic with some real data.: (Attachment Link) --- End quote --- Thanks, a real world example is always nice. Oh, so I was right then, this coupler is indeed special/exotic and it is a celebrety ! OK I will keep mine then 8) I have only one of them, just one.... |
| Vince:
--- Quote from: Robert763 on July 04, 2022, 07:44:05 am --- --- Quote from: Cerebus on July 03, 2022, 10:49:14 pm --- --- Quote from: Vince on July 03, 2022, 04:46:45 pm ---Now I think or it, one big advantage of punches is that you can make any shape you want, not just round holes... so it opens up an entire new world of possibilities 8) You could make a hole with a flat, to fit pots and keep them from spinning round and round, or anything... as long as someone somewhere sells the shape that you want... --- End quote --- They used to be quite common - you could get punches for the classic potentiometer with flat, D connectors, IEC inlets, and so on. Last time I bought some sheet metal punches the ones for anything other than purely round and rectangular holes seemed to have disappeared off the lists of the moderately priced manufacturers and I didn't look at the extortionately priced ones. --- End quote --- Made obsolete in industry by laser cutting and CNC routing. I've bought a 2mm laser cut panel with D shaped holes for less than a blank panel by the equipment case OEM --- End quote --- Ah yeah, laser cutting... but I hope prices have come down at least, at least an order of magnitude for x1 quantities / prototype since I last looked 15 years ago, where some German company wanted 100 Euros for a small piece of sheet aluminium with a square cut in it for an LCD, and a couple holes for knobs, forthe project I was working on... and they dared bragging about how "affordable" they were, at that ! :wtf: |
| Vince:
--- Quote from: Specmaster on July 04, 2022, 09:47:24 am ---Geez, I take a day out (Sunday) to attend an air show and when I get back I find you guys have generated 5 whole pages of input to wade through :o. Air show was OK but could have been better, the best part of an hour just to gain entrance to the show ground caused by bad event planning :palm: Flying started at 14:00, so we had 5 hours to kill before the display and all the time the sun was shining nicely. Just after the show started, it became very overcast with black storm clouds photography became a waste of time, then it started to rain, so we went and sat in the car and watched the Grand Prix on the car's inbuilt TV. The Grand prix was just 30 mile west of our location, and they had a beautiful but drama filled day. :popcorn: --- End quote --- Sounded like a lot of fun ! :-DD Better luck next time, which I guess will be soon, there is always a plane flying somewhere ! >:D |
| BU508A:
--- Quote from: Vince on July 04, 2022, 10:07:29 am --- --- Quote from: Robert763 on July 04, 2022, 07:44:05 am --- --- Quote from: Cerebus on July 03, 2022, 10:49:14 pm --- --- Quote from: Vince on July 03, 2022, 04:46:45 pm ---Now I think or it, one big advantage of punches is that you can make any shape you want, not just round holes... so it opens up an entire new world of possibilities 8) You could make a hole with a flat, to fit pots and keep them from spinning round and round, or anything... as long as someone somewhere sells the shape that you want... --- End quote --- They used to be quite common - you could get punches for the classic potentiometer with flat, D connectors, IEC inlets, and so on. Last time I bought some sheet metal punches the ones for anything other than purely round and rectangular holes seemed to have disappeared off the lists of the moderately priced manufacturers and I didn't look at the extortionately priced ones. --- End quote --- Made obsolete in industry by laser cutting and CNC routing. I've bought a 2mm laser cut panel with D shaped holes for less than a blank panel by the equipment case OEM --- End quote --- Ah yeah, laser cutting... but I hope prices have come down at least, at least an order of magnitude for x1 quantities / prototype since I last looked 15 years ago, where some German company wanted 100 Euros for a small piece of sheet aluminium with a square cut in it for an LCD, and a couple holes for knobs, forthe project I was working on... and they dared bragging about how "affordable" they were, at that ! :wtf: --- End quote --- Imagine you were employed at this company and working at this laser cutter station and want to get paid good money for your work ... Also, this was 15 years ago, Laser cutters were much more expensive and not so sophisticated as they are nowadays. |
| Specmaster:
--- Quote from: tautech on July 03, 2022, 11:08:35 am --- --- Quote from: bd139 on July 03, 2022, 11:06:40 am ---Depends how many posts people deleted :-DD Revisionist bastards! :-DD --- End quote --- Oh right, and you haven't played that game...... how's your halo hanging these days ? :-DD --- End quote --- Nope, I've never played such trivial games, deleting posts just to get on topic of page count posted, who cares in the long run, maybe the posts that got deleted might have been of far more importance than the flash in the pan post over a page number, geez :palm: :horse: |
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