RE: Rotary Sync Gap/Sync LED?

To: tesla-at-pupman-dot-com
Subject: RE: Rotary Sync Gap/Sync LED?
From: Terry Fritz <terryf-at-verinet-dot-com>
Date: Sun, 27 Sep 1998 20:51:27 -0600
Approved: terryf-at-verinet-dot-com
In-Reply-To: <000201bdea84$57458b40$b0db4ed1-at-mycroft2.llumc.edu>
References: <3.0.6.32.19980927185322.00903d90-at-verinet-dot-com>

I am a little concerned that the line voltage and the actual output peak of
the transformer may not be in phase.  I think one needs to use the actual
cap voltage as the source of the timing signal.  I have flourescent lights
in the room so I can kind of see where the gap is at but the lights do not
quite give the best spot.  The voltage probe will be up in a few days but I
am going to look into the cheap timing light idea too.

	Terry

At 07:04 PM 9/27/98 -0700, you wrote:
>Guys.. perhaps you're making this harder than it needs to be.
>Use a 120->3/5V transformer.
>Connect a large LED across the output.
>Said LED will light for 1/2 cycle, yes? (0r at least where the voltage
>exceeds the breakdown of 0.7?)
>
>Or for that matter, just an NE-2 with a dropping resistor?
>
>
>
>

References:

Re: Rotary Sync Gap

From: Bert Hickman <bert.hickman-at-aquila-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)