Re: Potting on the Cheap (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 7 Sep 2003 08:34:29 -0600
From: June Heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Potting on the Cheap (fwd)

Matt: I have used silicon RTV sealant with good results, but you need to
cure it well. I recommend you use "Heat glue" to seal your diodes. I use
plastic drinking straws to hold my series strings of diodes and seal them
full of heat glue. no AIR, WATER ,OR PROBLEMS.  I solder the diode leads
side by side about 6cm long with out wrapping the leads
----   Robert    H            - Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: <hvlist@xxxxxxxxxx>
Sent: Saturday, September 06, 2003 9:10 PM
Subject: Potting on the Cheap (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sat, 06 Sep 2003 16:37:53 +0930
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Potting on the Cheap
>
> Hi All
>
> I have recently acquired some (very cheap) SMD equivalent devices to the
> 1N4007.  I'm going to use these to make HV rectifier strings on narrow
> PCBs - no drilling ;-)
>
> Construction is simpler than it sounds - once the board is etched and
> cut, a dab of solder paste onto each pad, mount the diodes, then into
> the oven for a couple of minutes.  (There's a wonderful site out there -
> can't remember where - how to make SMD boards in a toaster oven.)
>
> Once the boards are made, I'd like to coat the strings with something to
> stop them getting damp/dirty with the risk of flash-over.
>
> I was wondering if anyone had any experience using silicone bath sealant
> in this application.
>
> Cheers
>
> M
>
> --
> Matthew Smith
> Kadina Business Consultancy
> South Australia
> http://www.kbc.net.au
>
>