Re: 9VAC from 5VDC?

From: Jim Brain <>
Date: Sun, 15 Sep 2013 16:49:55 -0500
Message-ID: <>
On 9/15/2013 2:20 PM, geneb wrote:
> On Sun, 15 Sep 2013, Jim Brain wrote:
>> Furnace transformers probably are, but they are bulkier.  Argh!  OK, 
>> well, I could probably live with that.
> This might seem totally obvious and maybe you've already done it, but 
> why not crack open one of the third party C-64 power supplies that 
> were popular "back in the day" and see how they solved the issue?
> g.
They were a linear PSU, so they just pulled the voltages needed off the 
large bulky transformer.  Half wave rectifying and smoothing it via some 
big caps, and feeding it through a liner voltage regulator to get 5VDC.  
Not much to them.


Jim Brain

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Received on 2013-09-15 22:00:03

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