Products > Test Equipment
MS05000 Budget Logic Analyzer Probe Set Design
Gandalf_Sr:
--- Quote from: electricMN on April 29, 2020, 03:36:09 pm ---The ham radio I'm building is CW only so I've added another project to my long list. Learn Morse code. |O
--- End quote ---
Morse can be done on a computer, I once got to 9 wpm mandraulic but it's a masochist's errand these days.
electricMN:
--- Quote from: Gandalf_Sr on April 29, 2020, 05:01:02 pm ---
--- Quote from: electricMN on April 29, 2020, 03:36:09 pm ---The ham radio I'm building is CW only so I've added another project to my long list. Learn Morse code. |O
--- End quote ---
Morse can be done on a computer, I once got to 9 wpm mandraulic but it's a masochist's errand these days.
--- End quote ---
Yup, that's probably the way I'll go. :-+
Gandalf_Sr:
So a few of you have asked me to send PCBs overseas from USA to EU or Oz and, to make it affordable, I came up with the solution of putting the PCBs in a medium photo-mailer envelope (weight under 3.5 oz) and marking the customs declaration "Free PCB sample, no commercial value". I did that because the cost of shipping a small insured box with tracking is about $36.
But now I'm looking for feedback; have these packages arrived OK? Please let me know.
Gandalf_Sr:
So 13 people have now been sent my LA PCBs but we've only seen one set of pictures (other than mine) :rant:
I had one person comment that he had issues soldering the ICs and I wanted to add this tip...
You will get much better results using a no-clean flux pen (they are about $9 each and look like marker pens but they will last a long time - over a year in my case) and the video on You Tube (below) gives a good overview of my approach (it's not my video, I just stumbled across it). That guy clearly has better eyesight than me, I work under a stereo microscope, and although the flux will dry up if left for a while, I don't fully support the absolute urgency he suggests to get the solder to the pins before the flux has evaporated. I clean the area to be worked on with acetone before I start and then swipe the flux pen over the pins I want to solder before soldering. Don't worry if the solder bridges several pins, use the wick/braid to get it off afterwards - tip, swipe the flux pen over the part of the braid you're about to use before using it to wick away the excess solder. I can get good results on 0.5 mm pitch ICs using this method.
Gandalf_Sr:
--- Quote from: texaspyro on April 16, 2020, 01:41:21 am ---I once had several dozen sheets of various 3 cent stamps from the 1930's. They could be bought for 10% less than face value (they had no collector value) and were quite beautiful with engraved printing. I used them when postal rates went up 3 cents and had a lot left over. They made for a very impressive envelope when used for the full letter rate.
--- End quote ---
Now I'm thinking of the awesome Cohen Bros movie 'Fargo; in one part, Norm who was Marge the pregnant policewoman's husband, sat at home painting a picture of a mallard that he entered into a competition and it ended up on the 3 cent stamp. Norm complained that nobody uses 3 cent stamps. :-DD
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