| | KB2VXA > TECH 12.08.04 07:32l 57 Lines 2734 Bytes #999 (0) @ WW
BID : 26278_WT3V
Read: GUEST OE7FMI
Subj: Re: VK3ABK's steel boots (;->)
Path: DB0FHN<DB0RGB<DB0MRW<OK0PPL<DB0RES<DK0WUE<HA3PG<CT2GWY<W4JAX<KD4GCA<
N1UAN<W1GMF<W1ON<W1ON-5<K1UOL<K1UOL<WA2PNU<KC2COJ<WT3V
Sent: 040811/1959 26278@WT3V.#CNJ.NJ.USA.NOAM $:26278_WT3V
From: KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
To : TECH@WW
Hi Dick and readers,
Wouldn't those boots get a bit warm in your climate? (;->) Just to clear
up one misconception about static charge, it's perfectly harmless no
matter what the koulomb rating. It's when DISCHARGED it can be a problem,
so watch the current path. (;->) Funny way of saying it, but unless the
current passes through some vital component like in the front end of your
receiver it can't do any damage. Funny how comms during Operation Desert
Storm came to a screeching halt at one point due to ESD, something Hams
in desert areas have been effectively dealing with for years. Well, we
all know "military intelligence" is an oxymoron. (;->)
As for those voltage spikes coming out of a battery charger, there aren't
any. Just where would they come from anyway? Even a "smart charger"
starts out by stepping down the AC mains to about 24V so any spikes or
transients are stepped down proportionately by the transformer's winding
ratio. Then when loaded, particularly by a well known voltage regulator,
a battery, anything that may be present simply is smoothed out along with
the ripple voltage. Yes, a battery IS an active filter.
Just stick with your $20 charger, the simplest "taper charger" there is.
Hmmmm, any charger will taper, the battery only draws what it needs
depending on the level of charge no matter what the available source
current. Hey guys, I have a 100AH battery bridged across the output of a
60A supply powering my Ham station. It makes for excellent backup power
and requires no fancy switching or other consideration. The battery
simply floats on line unless called upon, charges when need be, just like
the battery in a car. Oh, every few months I deep cycle it meaning I run
it flat and charge from scratch. That keeps it from sulfating so it lasts
much longer than the battery in an average car because drivers never seem
to consider the care and feeding of batteries beyond keeping the water
level in the cells up to the mark. BTW, I have to put a cooling fan on
the PSU when doing that, it doesn't like running at full output for
extended periods. (;->)
That's about it from Batteryland, but maybe the subject of batteries
should be considered in the next discussion of charging them. One last
tidbit, what do a battery, a calveryman and a woman have in common?
You guessed it... "______!" (;->)
73 de Warren, KB2VXA@WT3V.#CNJ.NJ.USA.NOAM
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Message timed by cesium laser: 20:09 on 2004-Aug-11 GMT
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