And presented in Dave's unique non-scripted overly enthusiastic style!
What’s in Dave’s mailbag this week?
No need to be ashamed by item 1, it takes all kinds to make the world go round, and to each his (or her) own.
I was thinking, for the broken LCD window, couldn’t you remove most of the broken glass, and then pour some 2-part clear epoxy on top? Or would shrinkage, heat dissipation (while the mix cures), or whatever, cause problems?
As for CC dummy loads, are those a bit like DMM’s, where you can’t really have too many of them?
at 3:00 i was SO expecting it to be an accompanying dildo :p
Take the dress appart ;)))
I vote for a teardown (on an appropriate model
I have the exact same digital calipers which I bought from a computer swap meet for 20 bucks. It came in a nice plastic case so I am surprised that yours didn’t. Believe it or not these are very high quality compared to a lot of others. The residual offset can be reset by pressing the zero button. They are great for measuring up stuff when you are laying out pcbs’s.
Same caliper here, nice plastic case included.
If that port allows reading their measured data, these cheap calipers could be hacked into linear encoders for CNC machines or robotics.
Same here, but 9 bulks from ebay
Re. the C C dummy load.
For longer use when the power-dissipation on the heat-sink gets to high. Connect a power-resistor in series with the load. If you calculate the value with regards to the current and the voltage you can make most of the power dissipate in the resistor. A power-resistor can stand much higher temperatures than a mosfet.
Just don´t burn yourself on it!
I have used this in a 12V 100A CC load for a long time. Works great!
Keep it up Dave!
Does anyone know where the nice PCB mounted BNC connector can be obtained from / what it’s part number is?
(Shamelessly crossposted here after first posting to the dedicated video #306)
It is called a “Board Edge End Launch” connector. For example, this looks like what the board uses: http://www.digikey.com/product-detail/en/361V504ER/991-1036-ND/2355574
And here it is with the panel mount thread:
Thank you very much!
Nice connector find. I wish these came with a threaded end and a “D” cut to prevent them from spinning if the panel nuts come loose.
Also, if you panel or box-mount these type of board-captive connectors, make sure your panel or box is thick and robust so the connector doesn’t flex when you hang a lot of stuff on it. Otherwise it will stress the board connection (especially is soldered with RoHS compliant solder).
I know this from experience. More than once I’ve encountered the likes of VSAT transceivers that use connectors like this but don’t pay proper attention to mechanical design – fail.
Regards, David in Jakarta
Is it just me ?
the video ends in the middle of a sentence at 6:57 .