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Our university electronics store has once again failed to update their inventory and are STILL out of +5V voltage regulators.
They do, however, have a -5V. Is there any harm with just connecting a microprocessor so that -5V is on the Vss pin and the 0V is on the Vcc? It's just a 5V potential right?
PS I know I can go to RadioShack, but it's not across the street like the university store is, and I would have to submit a reimbursement request instead of using a university account.
You could use a -5v Regulator with a cmos hex inverter to get a +5v. [...]
Reimbursement request?? It's your education, the cornerstone of your career, but don't let that inspire you to just spend a fortune (about 10% of a burger with fries) on a crucial part out of your own pocket.Perhaps it's cheaper to get a hairdresser education or a taxi license? Wink
And for those who did follow my logic and said it wouldn't work, why is that?
I've made multiple reimbursement requests for over $300 for different projects. This is part of my work as a research assistant and there are designated accounts for those projects. Yes, $2 isn't much, but it sure can add up.
I know I can go to RadioShack, but it's not across the street like the university store is, and I would have to submit a reimbursement request instead of using a university account.