Re: am I a SRSG failure?

[Terry Fritz <twftesla-at-uswest-dot-net>]

Hi Bill,

At 04:45 PM 8/10/00 -0600, you wrote:
>on that fateful day 8/9/00 7:49 PM, Tesla list uttered:
>
>> Original poster: Terry Fritz <twftesla-at-uswest-dot-net>
>[snip]
>> There may be something wrong with the florescent lights (no!, I'm serious!
>> ;-)).  Today they use electronic ballasts and other goofy things (like long
>> persistence) that may be messing that test up...
>> 
>> Be sure there are good light and dark areas on the shaft or make a strobe 
>disk
>> to put on the shaft.  Florescent lights give a pretty fuzzy indication
so you
>> need good black and white marks to show well.
>
>I've been thinking of making a little neon strobe illuminator, and Dave
>could too.  Just get yourself ten or so NE-2 (1/4 watt, .7mA) neon lamps,
>put a dropping resistor of about 100k in series with each lamp, hook all in
>parallel to the 120VAC line, place in a flashlight or similar reflector.
>Watch for lead insulation.  Presto, a directional, moderately bright
>line-sync'd light.
>
>Someone like American Science & Surplus or one of those places had coiled
>_neon_ (red, not xenon which is white) flashtubes which used to be used in
>old automotive timing lights and other strobes.  That would work great.
>
>I used to have a neon strobe tachometer with a line-sync setting, but I gave
>it away.  I should borrow it back!  Gunner, if you read this, and you know
>where it is... dig it out!  Be sure to reply off-list.
>
>Hmmmm, I have an automotive timing light with an inductive pickup... sounds
>like I should do some experimentation!
>
>- Gomez
>

You may be interested in modifiying a Radio Shack strobe light for a sync
gap timing light.  Instructions are at:

http://users.better-dot-org/tfritz/RS-Strobe/RSStrobe.htm

I know someone near you who has one if you want to borrow it :o)

Cheers,

	Terry