A pair of IRFB4227's and an IRS2110 driver chip, careless stupidity on my part spectacularly (loud bang) blew up the half bridge stage in a DIY SMPS based thingy! I hope I have figured out how I did it, slapped my own wrists
A bunch of these incandescent 7 segment displays, to finish my minitron-clock, and synchro differentials for experimenting.
A already received 6 of the displays a few weeks ago, one was bad (lower intensity and higher current than the others, maybe due to internal gas residues), and I broke one while starting to build the clock, so I ordered some more.
For some reason I forgot to upload an image of the board for the meter.
Bunch of 16KBit FRAM FM24C16B chips from forum's fellow at the Buy/Sell/Wanted section.
Bunch of 16KBit FRAM FM24C16B chips from forum's fellow at the Buy/Sell/Wanted section.
Nice. Can you erase them with a strong neodymium magnet?
Bunch of 16KBit FRAM FM24C16B chips from forum's fellow at the Buy/Sell/Wanted section.
Nice. Can you erase them with a strong neodymium magnet?
Ferroelectric!=ferromagnetic
+1 , simply put, FRAM is not affected by magnetic fields.
Bought a H&B Pontavi Wheatstone Bridge for a few bucks . This puppy still works
Nice! I was wondering if someone here snagged that one. Now, you just need to find a replacement logo.
Wow, that looks very cool. And you know its good quality if the Swiss post office used it.
>A elecrical motor scooter from the local post office, they are cheap because the manufacturer is defunct. I got a nice pile of extra components and documentation for the thing.
> There are four 100Ah lifepo4 Batteries inside, it can drive about 80km with one charge. Now i have some reverse engineering to do. It uses CAN or RS485 between all components.
I would be interested in hearing more. Ive seen a similar electric scooter used by a coworker in a daily commute that involved an approximately 2000 foot climb in elevation at a previous job.
Bought a H&B Pontavi Wheatstone Bridge for a few bucks . This puppy still works
that's really cool, and I learned something new! one of the reasons I subscribe to this thread...
Last Month I bought the Tektronix 4041 GPIB Controller.
But look what I found today!
The Keyboard !!!!
Last Month I bought the Tektronix 4041 GPIB Controller.
But look what I found today!
The Keyboard !!!!
That's cool stuff, but don't forget about the FG502 you're working on. Don't get too distracted!
That is funny !
I was just thinking that this morning.
I have too many projects started and ongoing.
Datron 4000A ( Repair DC Current Board)
Vision Engineering TS-3 Microscope (CCD Camera Setup)
FG502( Order Parts )
Tektronix 4041 ( Do I really want to program GPIB in Basic?)
Tektronix PG506 (repair front panel)
McIntosh MC2105 (repair left Channel driver board)
well, I figure if I'm going to fiddle with some SMD, I really should buy myself one of these:
Was pretty reasonable on Amazon.ca (C$65) . although I see there are a lot of fake sellers selling them today
This took 3 years to find. A General Radio 900-TUA tuner. Sister unit to a 900-TUB and 900-LB slotted line I have.
It's on its way, still has some international hurdles to pass. Hope I didn't jinx things by mentioning it before holding it in my hands.
Looks like it's missing the paper manual, so that's one more hunting item.
It's being shipped to me, but I just bought a B&K Precision 1511 power supply for super cheap.
Sadly, I didn't pay attention to the specs - only 10mA max output on the high voltage side, which limits its usefulness. At least the low voltage portion has decent power.
0-20VDC, 5A 0-80VDC, 10mA 0-500VDC, 10mA
AC 1.1V, 2.2V, 3.3V, 4.4V, 5.5V, 6.6V 2A
Aneng AN8002 multimeter for 12.16€ shipped from Banggood.
I'm going to add Range and REL buttons and an optocoupled USB port for logging (CP2102 board for converting UART TX to micro USB).
I was planning to buy one of those but I didn't know if they were worth buying. Can you please do a very quick review?
ha! what other questions could one possibly have? lol
I was planning to buy one of those but I didn't know if they were worth buying. Can you please do a very quick review?
don't waste your money...
I was planning to buy one of those but I didn't know if they were worth buying. Can you please do a very quick review?
don't waste your money...
Really? Thanks, I'll just keep using my UNI-T