Post Created date
How to cool a small amount of air?
How about an ice chest cooler with a heat exchanger. I've seen a few videos of DIY units. Here are commercial ones:   https://frankencooler....
Fri. Feb 15, 2019 - 09:59 AM
Need a easy hack to monitor 1.8V
ncv33161 - window comparator with 1.27V reference.   - S  
Tue. Feb 5, 2019 - 09:54 AM
What's the name of this connector?
It's hard to tell from the picture, but it could be a JST-XH - the notches in the socket to the left of it look to be in the right locations for the JST-XH. If you could unplug...
Thu. Jan 24, 2019 - 11:39 PM
High Performance soldering station
Thermaltronics makes metcal clones that are a bit cheaper than the metcal equivalents. For example, the tmt-9000s is a mx-500 clone that goes for about USD 400:   https://www...
Wed. Jan 2, 2019 - 03:18 AM
M90E26 Energy Metering IC Power on Reset
You only need to do the calibration measurement and calculation once (e.g. during manufacturing testing). Store that value in eeprom, and on regular power up, just write the...
Sat. Dec 29, 2018 - 06:20 AM
Polarizing Film Question
Big clive has a bunch of youtube videos describing his tests with home PCB etching. Toner masks don't give good results. You might get better results with inkjet...
Thu. Dec 20, 2018 - 11:40 AM
practical breadboard wiring: headers, fine wire on devices, stripping wire, etc.
dochawk wrote:Particularly, the gauge is too small to push into breadboards without bending. You could try a screw terminal breakout like:
Mon. Dec 10, 2018 - 08:34 AM
12bit DAC enough for ATM quality audio messages?
rammon wrote:Anyway the big question is: is 12bit high enough for such application?   Landline telephone calls use 13-14 bit DACs, sampling at 8ksps. These samples are...
Wed. Dec 5, 2018 - 09:04 AM
buying bed of nails test fixture
A web search for "cheapskate pcb test fixture" came up with You could get them to custom drill the base plate for the test pin locations that you...
Mon. Nov 26, 2018 - 11:25 PM
Does anyone knows about the Atmel's camera?
As far as I can tell, this was part of the Aviiva line of products, which was acquired by e2v (now teledyne e2v). You could try and contact them (
Sun. Nov 25, 2018 - 01:00 AM
terminal block question
mannen wrote:I´m just a bit confused with a few things. It says temperature range up to 115 degrees C. isn't that too low for the reflow process? (they say it is for "SMT...
Tue. Nov 20, 2018 - 05:02 AM
PLL Design
Why are your digital signals peaking at about 5V in the simulation trace, when the Vdd of the schematic appears to be 12V?   - S  
Thu. Oct 4, 2018 - 08:29 PM