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Posts Made By:
Geoff Harrison
Forum:
Altair 680
06-05-2008, 11:45 AM
Replies:
7
Almost ready to power up
Views:
26,848
Posted By
Geoff Harrison
That's an interesting thought, I've read 7805s...
That's an interesting thought, I've read 7805s don't like to see high voltage on their output side.
I unsoldered the resistor and the regulator is putting out a solid 5v now, but I don't know...
Forum:
Altair 680
06-05-2008, 01:46 AM
Replies:
7
Almost ready to power up
Views:
26,848
Posted By
Geoff Harrison
I'm up :D ...
I'm up :D
http://www.solivant.com/misc_images/altair680_first_words.jpg
After installing the ICs, I tentatively powered up and the 5v rail was reading 8v. Scary, but it was dropping slowly. ...
Forum:
Altair 680
06-04-2008, 11:57 PM
Replies:
7
Almost ready to power up
Views:
26,848
Posted By
Geoff Harrison
Following up on my own question, I attached a 12v...
Following up on my own question, I attached a 12v incandescent lamp to the 5v line as a load, and the voltage came down to a much more reasonable level (actually a little below 5, but that's better...
Forum:
Altair 680
06-04-2008, 08:41 PM
Replies:
7
Almost ready to power up
Views:
26,848
Posted By
Geoff Harrison
Almost ready to power up
I've got the motherboard finished and I'm checking the voltages before I insert the chips and everything's kind of high, but I suppose that's to be expected with no load.
Should be ...
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