Re: Dan's DRSSTC II 1st light tips?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Daniel McCauley" <dhmccauley@xxxxxxxxxxxxxxxxxxxxxxxxxx>

Just remember, if you lower it, its going to have to be big to dissipate all
that power.

Dan


> Point taken - I'll reconsider lowering the 10k resistor for a faster
> discharge.
>
> Thanks much
>
> Marc
>
>
>  > [Original Message]
>  > From: Tesla list <tesla@xxxxxxxxxx>
>  > To: <tesla@xxxxxxxxxx>
>  > Date: 7/8/2005 9:13:15 PM
>  > Subject: RE: Dan's DRSSTC II 1st light tips?
>  >
>  > Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>  >
>  > Hi,
>  >
>  > I try to make primary caps and easily touchable things discharge in 5
>  > seconds  (5RC = 5).  It is real nice when a friendly helper moving your
>  > stuff is fondling the primary cap terminals to know that there is not
>  > voltage left there ;-))
>  >
>  > Internal buss stuff is like 2 or 3 minutes based on how long it take a
>  > statistically averaged fool to remove the cover screws and go touching
>  > everything inside...
>  >
>  > Test technicians and those that play with circuits live, are just "on
> their
>  > own" to "know better"...  "Hand" discharge resistors are cute, but I
have
>  > seen too many flaming resistors thrown across the floor in terror when
>  > someone tries to discharge the still fully energized buss...  I just
used
> a
>  > screwdriver, but I don't think that is politically correct now ;-))
But
>  > they were very effective...
>  >
>  > I put discharge resistors on "every" dangerous cap.  No reason at all
not
>  > too...  Base the discharge time on how long it take to go grabbing
it...
> I
>  > have a buss switch that either charges the caps up hard, or discharges
> them
>  > hard, with a 50 ohm resistor.  Either you are running the coil, or you
> are
>  > running away ;-))  No in between...
>  >
>  > http://drsstc.com/~terrell/schematics/Chassis.gif
>  >
>  > Cheers,
>  >
>  >          Terry
>  >
>  >
>  > At 05:04 PM 7/8/2005, you wrote:
>  > >Hi Dan,
>  > >
>  > >I chose 10k because that was the value in the book!
>  > >I'm not really concerned about discharging "as fast as possible".
>  > >I just don't want to go back to the coil after dinner or whatever and
>  > >forget the H-bridge is still sitting at 200 volts or so!
>  > >
>  > >Thanks!
>  > >
>  > >Marc
>  > >
>  > >
>  > > > [Original Message]
>  > > > From: Tesla list <tesla@xxxxxxxxxx>
>  > > > To: <tesla@xxxxxxxxxx>
>  > > > Date: 7/8/2005 12:34:54 PM
>  > > > Subject: RE: Dan's DRSSTC II 1st light tips?
>  > > >
>  > > > Original poster: "Mccauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>
>  > > >
>  > > > Just saw this.
>  > > > Anyways, the 10k resistor isn't going to discharge fast enough to
be
> of
>  > > > real use.
>  > > > Its better to use a relay (or similar) and a smaller resistance
> resistor
>  > > > to
>  > > > really discharge as fast as possible.
>  > > >
>  > > > Dan
>  > > >
>  > > >
>  >
>
>
>
>