samsquanch
500+ Head-Fier
- Joined
- Jun 3, 2009
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So, I'm in a bit of a pickle...
I have a Hagerman Bugle phono pre that I run off of batteries, yesterday it seemed like I was losing one of the channels, I chalked it up to batteries going dead. Today I get some new 9V's, pop them in, and nothing, as in absolutely no sound. I fiddle around for a bit, then think to myself, "maybe I put the dead batteries back in?" I go to swap both batteries, when I realize, that the negative terminal on one of the battery holders has broken off, con sarn it...
I'm flat broke at the moment, and can't afford the gas to go out of the way to a radio shack, let alone the mom and pop electronics shop, to go buy another battery holder, BUT! I do have the parts at work to hobble together a ~+/-12V power supply.
After that long winded explanation, the problem is, the power supplys I have at work are 24V switching, I know that linear is the best method, but am I going to notice any noise or other issues? Chances are that I'm just going to throw caution to the wind and build it, but I'm mostly worried about blowing something up.
Planned method would be power supply -> power cap -> opamp voltage divider -> ripple caps -> preamp
Any help would be pretty sweet, since I've got all these kick ass records but no way to listen to them, dag nab it!
I have a Hagerman Bugle phono pre that I run off of batteries, yesterday it seemed like I was losing one of the channels, I chalked it up to batteries going dead. Today I get some new 9V's, pop them in, and nothing, as in absolutely no sound. I fiddle around for a bit, then think to myself, "maybe I put the dead batteries back in?" I go to swap both batteries, when I realize, that the negative terminal on one of the battery holders has broken off, con sarn it...
I'm flat broke at the moment, and can't afford the gas to go out of the way to a radio shack, let alone the mom and pop electronics shop, to go buy another battery holder, BUT! I do have the parts at work to hobble together a ~+/-12V power supply.
After that long winded explanation, the problem is, the power supplys I have at work are 24V switching, I know that linear is the best method, but am I going to notice any noise or other issues? Chances are that I'm just going to throw caution to the wind and build it, but I'm mostly worried about blowing something up.
Planned method would be power supply -> power cap -> opamp voltage divider -> ripple caps -> preamp
Any help would be pretty sweet, since I've got all these kick ass records but no way to listen to them, dag nab it!