Re: Just a little show and tell

I'd love to roll my own too Clay. I'd be up for at least a couple of these.  They're prettier than Mark's ;-)

 
-Malcolm

--- On Tue, 10/6/09, Clay Cowgill <c.cowgill@comcast.net> wrote:

From: Clay Cowgill <c.cowgill@comcast.net>
Subject: VECTOR: Just a little show and tell
To: vectorlist@vectorlist.org
Date: Tuesday, October 6, 2009, 8:00 PM

Way back when (probably about nine years ago as a matter of fact ;-) I bought a bunch of bare LV2000 boards from Jeff and kitted the parts from Mouser.  I used a couple and then took the rest to Ground Kontrol and let a couple of our trainee game repair people put them together for the machines at GK.  That was, in hindsight, not the best plan.  Lots of f'ed up LV2000's with lifted traces and various other damage.  Whoops.
 
Since I've been slowly picking through my dead WG6100 chassis over the summer (and now fall) it seemed like a good time to make my own LV2000 clone for GK that was as totally foolproof as possible (no wires to solder or things to tune) and that could stand up to some abuse.  I used really thick traces and double-sided copper to make them a bit less fragile (for our occasionally ham-fisted technicians) and the connections to the deflection board are short, solid pins so there's no way to wire them up to the wrong spots.  The back of the board is basically solid copper plane connected to the regulator tabs by some vias to help sink heat away.
 
Anyway, they arrived last week and turned out kinda neat, so I thought I'd share a pic of my variation on the original.
 
http://picasaweb.google.com/lh/photo/--yIG3xhraInl24S8VCHDw?feat=directlink
 
(...and yes, I should have labeled the pins more like +/-26V, but I had the target voltage for the output of the power transistors on my mind. ;-)
 
-Clay
 
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Received on Wed Oct 7 11:26:48 2009