[time-nuts] Line Voltage frequency Interface morphed tobatteries

J. L. Trantham jltran at att.net
Mon Nov 28 23:51:09 EST 2011

Implantable pacers and defibrillators use Lithium chemistry batteries
(originally Lithium Iodide) typically around 3 VDC (BOL about 3.15 VDC, EOL
about 2.62 VDC).  The typical output pulse to the heart to pace the heart is
about 2.5 VDC at about .3 mSec pulse width.  However, they can be programmed
up to about 8 VDC at 1.6 mSec pulse width.


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chris Albertson
Sent: Monday, November 28, 2011 10:34 PM
To: jfor at quikus.com; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Line Voltage frequency Interface morphed

On Mon, Nov 28, 2011 at 7:42 PM, J. Forster <jfor at quikus.com> wrote:
> Recently, I took an old disposable 35mm film camera appart. It had a
> flash, powered by a 1.5 V carbon-zinc AA battery. Inadvertantly, I got
> across the terminals of the flash capacitor and got a hell of a shock.
> Had the current gone through the right (wrong?) place, I could well be

Another pathological example is the implanted pacemaker.  How much
voltage does it use.  I bet way less then what's inside a 9V battery.
But the location and the firm contact it makes means very little
voltage is required.

One of the odd things about humans is that compared to other animals
we are very tolerant of electrocution.

Anyways the entire thread is kind of pointless the very first thing I
looked for when I wanted to measure AC line frequency was my 6V AC
wall wort power supply on the teary that the 6V secondary would match
the AC mains frequency..  I'd guess that anyone would think of a low
voltage transformer

Chris Albertson
Redondo Beach, California

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