August 23, 2017 12:33:44 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: A little power circuit explanation please
>
>
> > On 23 Aug 2017, at 00:49, Rob Doyle via cctalk > <mailto:cctalk@classiccmp.org>> wrote:
> >
> > It's
AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: A little power circuit explanation please
> On 23 Aug 2017, at 00:49, Rob Doyle via cctalk wrote:
>
> It's a little switching power supply. It steps up the 9V input voltage to
> something a few volts greater th
> On 23 Aug 2017, at 00:49, Rob Doyle via cctalk wrote:
>
> It's a little switching power supply. It steps up the 9V input voltage to
> something a few volts greater than 12V to feed the 12V regulator.
>
> If your 12V is correct, it is probably working.
>
This is from 2 months ago but I was
It's a little switching power supply. It steps up the 9V input voltage
to something a few volts greater than 12V to feed the 12V regulator.
If your 12V is correct, it is probably working.
Rob.
On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote:
Hi folks,
Failing Atari PSU aside I remember
> On 23 Aug 2017, at 00:45, Don North via cctalk wrote:
>
> On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote:
>> Hi folks,
>>
>> Failing Atari PSU aside I remembered a question I had ages ago but never
>> posted about the power circuit of another 80s home micro, the Enterprise 64.
>> This
On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote:
Hi folks,
Failing Atari PSU aside I remembered a question I had ages ago but never posted
about the power circuit of another 80s home micro, the Enterprise 64. This
machine is powered by a 2A 9V unregulated PSU and internally there’s a pair
Hi folks,
Failing Atari PSU aside I remembered a question I had ages ago but never posted
about the power circuit of another 80s home micro, the Enterprise 64. This
machine is powered by a 2A 9V unregulated PSU and internally there’s a pair of
7805s and a 78L12 to smooth things out.
There’s a
