[DECtalk] Some questions about DECtalk Express

Tom Kopec w1pf at comcast.net
Mon Aug 13 08:01:12 EDT 2018

Power jack takes a 2.1mm/5.5mm plug, center positive. The unit requires 
12V, at least 400mA, *regulated* ... These are pretty commonly 
available, they are often used for LED strip lights. Just make sure the 
polarity is correct.

If you hook up a power supply with reversed polarity or too-high 
voltage, an internal fuse in the DECtalk Express will blow.  The fuse is 
a surface-mount fuse near the power jack, digikey part F1165CT-ND , any 
electronic technician can test and/or replace it.
I think later builds changed this fuse to a self-resetting protector.

The unit will work fine on external power even with a dead battery.


On 8/11/2018 12:00 PM, dectalk-request at bluegrasspals.com wrote:
> First, when I received the unit, I tried to charge it with the original
> chager, but I didn't know, that people in America uses 120v, while we in
> Denmark uses 230v for electricity, so I think I might have burned the
> charger. Does anyone know, if I can get a new charger for it with 230v, or
> if I can get a new charger and an adapter from 120 to 230 v?

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