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In Reply to: RE: Ugly, it's a good thing you asked ahead of time posted by Ugly on October 9, 2014 at 21:17:04:
?? Does it have another transformer on the inside? 12 VAC will only get you about 18 VDC off of the first cap (1.414 * VAC = VDC) and so, to get 18 V regulated, it is not a normal regulator as it could be a low offset regulator and then how does it get -18v DC? Gasp, it could be a switching regulator??? Those are VERY bad.
Anyway, as I explained, a 1 Amp, 24 volt center-tapped transformer and very simple fixed voltage regulators and reasonable capacitor size, 3300 uF, 50V or so (I'm trying to recall) should get you to a pretty good power supply without having to go to the Belleson's. EBay will sell you regulators for $8 each. I tore up an old CD player and broke off the power supply section for mine. The circuits are really simple if you know how to use a soldering iron. The transformer is the most costly item for this and, probably, why you have to spend big bucks to get reasonable performance.
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Follow Ups
- RE: Ugly, it's a good thing you asked ahead of time - jedrider 07:29:50 10/10/14 (4)
- RE: Ugly, it's a good thing you asked ahead of time - Ugly 08:38:19 10/10/14 (3)
- RE: Ugly, it's a good thing you asked ahead of time - jedrider 09:17:10 10/10/14 (2)
- Please see my new post above to CBP. It addresses some of your points. -t - Ugly 21:59:33 10/10/14 (1)
- RE: Please see my new post above to CBP. It addresses some of your points. -t - jedrider 10:14:34 10/11/14 (0)