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God only knows what happened. The Tariffs should have been only on the PCB not on the shipping. It is clear the 100% tariff was on everything.
I have been shipping out with an invoice for just the product (hardware). Then a separate invoice for the labor and shipping. Customs does not see the...
In 1978 I had a clock used in factory automation that uses 60hz from the power line. The clock did not keep time well. I tracked it down to every time the elevator motors turned on there was an extra pulse added to the time.
60hz See link to a good stable 60hz without the power line. I made the...
A single sided board has a problem that the coper may come off the board if you mechanically stress the parts.
A double sided board will have pads on top and bottom, and most importantly there is a "via", metal tube through the board. Mechanically the board is much stronger.
I have made boards like that many years ago. 1970s
Single sided and double-sided cost the same now. I would put the "jumpers" on the top side copper.
I did this in Paint.net just to make a point. The green is topside and replaces a jumper.
In any CAD there is an "area fill" command. The +12B is...
Years ago, I had the CPU refresh every 1mS. Set up an interrupt for the timing. I think I did 256 sequential reads as fast as possible. Don't remember the details.
HPBasic was/is used by many companies. During the HP-Agilent-Key Sight shuffle, many of the servers that held the old files were scrapped. People did not understand that test equipment lasts for years and needs the files to work. I remember when they came for all the old manuals in the building...
Years ago, I switched from R-R tape recorders that were too heavy to lift, to digital recorders.
I know what a 2 channel and a 4 channel tape deck is.
My first two digital recorders clearly are labeled 8 channel. They can play back 8 channels but can only record 1 or 2 channels at a time. It...
Inside the can is a crystal that resonates. Just like a tuning fork. Most likely yours is12mhz. (not certain)
Corrosion is probably OK.
Dose the camera work?
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