Thanks everyone. Think I'll take Mike's advice and just mark them. I was toying with the idea of using only one but there really isn't a good reason to do so.
Kurt
On Mar 16, 2018 4:52 PM, Brian White <bw.al...@gmail.com> wrote:
Ubdervolting draws more current, which may be stressing some part even if it still works.Both under and over voltage are bad for different reasons.The only spec that you can exceed harmlessly is a ps that can deliver more current (not voltage) than needed is harmless.A ps that can't deliver enough current won't hurt the device, except by potentially scrambling data from instability and crashes, but it will kill the ps.On Fri, Mar 16, 2018, 1:04 PM John Gardner <goflo3@gmail.com> wrote:IME 6 VDC (8201a) works fine.
...
On 3/16/18, Mike Stein <mhs.stein@gmail.com> wrote:
> I think it would depend on the adapter type; I would measure the *actual*
> voltage of both adapters, both unplugged and plugged in with the computer
> turned on.
>
> They do have regulators, in fact they have complete regulated switching
> power supplies. I really wouldn't recommend using the 8.5V supply instead of
> the 6V; extra voltage is usually dissipated in heat, which could possibly
> cause a problem with extended use.
>
> How about just colour-coding the connectors and jacks?
>
> m
> ----- Original Message -----
> From: Kurt McCullum
> To: Model 100 Discussion
> Sent: Friday, March 16, 2018 11:52 AM
> Subject: [M100] Power Adapter Questions
>
>
> A quick power question for those who may be able to answer this question.
> On my NEC 8201 the AC power adapter is rated for 8.5 volts. The AC power
> adapter for my 100/102/200/TPDD2 is 6v. I have both on my desk but get them
> mixed up at times even though I try not to. The units seem happy with either
> voltage. So I'm wondering if there is a risk of damage when I accidentally
> put the 8.5v plug in my 200 or 102. Do they have an internal regulator that
> prevents damage?
>
>
> And one other question. I am getting ready to make the modification to my
> 200 which allows it to have rechargeable batteries rather than regular AA
> cells. This is an option which the service manual refers to. It involves
> soldering two small jumpers. Will I need to run a higher voltage to charge
> these batteries or is 6v enough?
>
>
> Kurt
