[NTLK] Newton Power Adapters --important UPDATE

[Dan]

Multi select, meaning the adapter is made with adjustable output.  Such
as 3v 4.5 5v, 6v, 9v are the most common settings.  They often have
different tips that can be swapped for different devices.  The problem
is most of them are not regulated and vary a bit in their output.  And
while fine for a tape/cd player, it could fry a Newton if the output is
not exactly right.  I think it has to do with the recharge circuity.
But either way the list archives have a lot of instances where people
used a cheap adapter that fried their newton after a while.  Good
adjustable regulated supplies are expensive.  Hence the recommendation
for years has been use only a apple adapter.  You can't go wrong there.

Others never had a problem with lesser adapters, but I wouldn't take the
risk.

Sorry I wasn't specific before.

-Dan

On 5/30/2016 5:25 PM, Piotrowski Paweł (Newton) wrote:
> Dan, what do you mean by “multi select power supply”?
> 
> 
> 
> 
> Best regards,
> Pawel Piotrowski
> 
> NPDS Server: http://newton1.applenewton.co.uk (powered by Newton 2100)
> NPDS Tracker Server: http://tracker.applenewton.co.uk:3680 (powered by Raspberry Pi)
> 
> 
> On 30 May 2016, at 22:17, Dan <dan at dbdigitalweb.com> wrote:
> 
>> PLEASE NOTE I messed up/typoed and said 5v, both adapters are 7v!  The
>> difference between the two is the amps output, hence the speed of
>> charging.  But either adapter will work with either newton without issue.
>>
>> Also make SURE you have a regulated power supply.  If you search the
>> archives you will find many cases of people that destroyed their newton
>> with a cheap multi select power supply.
>>
>> -Dan
>>
>> On 5/30/2016 5:01 PM, Dan wrote:
>>> Yes and no.  The 1x0 models CAN charge batteries, but only NiCad.  There
>>> was a battery pack made with 4 normal AA cells with a metal band around
>>> it.  This metal band pressed down a button in the bottom of the battery
>>> compartment which told the Newton that you had rechargeable batteries in
>>> it.  It would then charge via a station it sat in and charged via two
>>> contact points at the bottom.  Or via a plugged in 5V adapter.
>>>
>>> The reason for the difference for the 2x00 model is due to the ability
>>> to FAST charge.  The 2x00 could fast charge the battery pack in a hour.
>>> Where as the 1x0 took several.  You can run a 1x0 on the newer power
>>> adapter without any issue.  Also a 2x00 can run on a older adapter,
>>> however if the battery pack is being charged it will charge very slowly
>>> in comparison.
>>>
>>> -Dan
>>>
>>> On 5/30/2016 10:45 AM, Piotrowski Paweł (Newton) wrote:
>>>> Thanks, Sylvain!
>>>>
>>>>
>>>>
>>>>
>>>> On 30 May 2016, at 13:06, Sylvain Pilet <pilets at mac.com> wrote:
>>>>
>>>>> Hi Pawel,
>>>>>
>>>>>
>>>>> The 7.5V AC adapter is for eMate/MP2000/MP2100
>>>>> The 5V is for 1x0 models (they do not recharge the batteries, and screen is more small)…
>>>>>
>>>>>
>>>>>
>>>>> Sylvain Pilet
>>>>>
>>>>> - A P P L E  N E W T O N  N P D S -
>>>>> - Apple Newton NPDS Server: http://message-pad.no-ip.org
>>>>> - Apple Newton NPDS Tracker: http://message-pad.no-ip.org:3680
>>>>>
>>>>> - A P P L E  N E W T O N  &  M O R E -
>>>>> - http://message-pad.net
>>>>>
>>>>> Le 30 mai 2016 à 10:09, Piotrowski Paweł (Newton) <newton at indigi.co.uk> a écrit :
>>>>>
>>>>>> Hi!
>>>>>>
>>>>>> I’m trying build kind a multi-power supply for my 4 Newtons. It is obvious that power parameters are 7.5V and 1.2A DC.
>>>>>>
>>>>>> What I found on Newton FAQ:
>>>>>>
>>>>>> http://www.splorp.com/newton/faq/newton-faq-hardware.html#IIB7
>>>>>>
>>>>>> But some guy wrote that 5V and 400mA works fine… I’m confused. 5V is not enough, especially 400mA…
>>>>>>
>>>>>>
>>>>>> Any ideas?
>>>>>>
>>>>>>
>>>>>> Best regards,
>>>>>> Pawel Piotrowski
>>>
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>>>
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