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From: "Lewis Gardner"
Subject: Re: 24 VAC to 9VDC supply
Date: Wed, 4 Dec 2002 01:39:30 -0500
X-Newsreader: Microsoft Outlook Express 5.00.2615.200
> What is the quickest, dirtiest, cheapest way to get
> 9 volts DC from a 24VAC source. Need about 150ma
> of current but the DC does not need to be regulated.
> Half-wave rectifying will give too much DC voltage,
> it would burn up a regulator since I don't have a
> place to heatsink one. Some solution which involves
> cutting up a wall-wart making use of the parts inside
> would be ideal.
If you have room for a cut up wall wart I can't imagine you don't have room
for a heatsink.
My inclination would be to use a voltage regulator. I would try a LM317T which
should not require much of a heatsink at 150ma (1/10 of it's rated current
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