andrzejpw
May one day invent Bose-cancelling headphones.
- Joined
- Jun 25, 2001
- Posts
- 6,636
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I'm about to start building the meta42(probably wed or so), and I've got a few questions.
1) At first, I'll be operating on battery power only. Just 2 9V. I ordered the parts to go into class A(the transistors), but should I do it at first? I may add a current source later.
2) Is there a place on the board to connect a switch? (wait, its the thing marked SW, isn't it?)
3) I have an old wallwart that I've ripped from an old set of non working labtec speakers. Here are the specs:
15VDC 1000mA.
Polarity: + 0 - (trying to draw that picture.
)
Is it worth it to bother with this one? I mean, I have it.
And I may upgrade to a better one soon. How hard would it be to change polarity if I need to, inside the meta, I mean? Just flip the wires on the jack?
1) At first, I'll be operating on battery power only. Just 2 9V. I ordered the parts to go into class A(the transistors), but should I do it at first? I may add a current source later.
2) Is there a place on the board to connect a switch? (wait, its the thing marked SW, isn't it?)
3) I have an old wallwart that I've ripped from an old set of non working labtec speakers. Here are the specs:
15VDC 1000mA.
Polarity: + 0 - (trying to draw that picture.
Is it worth it to bother with this one? I mean, I have it.