Article View: sci.electronics
Article #17703Power Supplies for Tube Circuits.
From: dvadura
Date: Thu, 02 Jul 1987 02:32
Date: Thu, 02 Jul 1987 02:32
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I'm working on building a small audio pre-amp using a 12AX7 type
tube. I'd just like to experiment with some old-style technology. It's
been suggested that I could obtain the less than 330 volts needed by
directly rectifying the line current and putting it through a voltage
doubler, eliminating the power transformer. This could reduce the cost
of the thing quite a bit *iff it's a safe (for both me and my toys)
thing to do*. Are there any experts out there who'll expound on the
wisdom (or lack there of) in eliminating the power transformer? I'll
definitely put one in if there's any doubt.
Thanks.
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!rose!dvadura From: dvadura@rose.UUCP Newsgroups: sci.electronics Subject: Power Supplies for Tube Circuits. Message-ID: <12887@rose.UUCP> Date: Wed, 1-Jul-87 22:32:37 EDT Article-I.D.: rose.12887 Posted: Wed Jul 1 22:32:37 1987 Date-Received: Fri, 3-Jul-87 06:31:26 EDT Reply-To: dvadura@rose.UUCP (Dennis Vadura) Distribution: na Organization: U. of Waterloo, Ontario Lines: 16