[Amps] High voltage rectifier / capacitor board material?

[Al Kozakiewicz]

Beef is quite well done at 200F.  Beef at 400F would, at best, be jerky.  More likely, shoe leather!

What's wrong with good old glass-epoxy?

Al
AB2ZY

-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Steve Katz
Sent: Thursday, September 06, 2012 8:16 PM
To: Bill, W6WRT; AMPS
Subject: Re: [Amps] High voltage rectifier / capacitor board material?

I think the temp rating of those cutting boards is fairly high, as you can place meat that was just cooked at 400F directly on the board without damage or discoloration.
 
Or, at least I do that!
 
WB2WIK

________________________________

From: Amps on behalf of Bill, W6WRT
Sent: Thu 9/6/2012 5:06 PM
To: AMPS
Subject: Re: [Amps] High voltage rectifier / capacitor board material?



ORIGINAL MESSAGE:
On Thu, 6 Sep 2012 21:35:02 +0100, Chris wrote:

>
>What is a readily available plain (unclad) board material to use to 
>build an electrolytic capacitor array supporting a 5kV supply for a
>3CX1000A7 tubed linear please? I am in the UK, so something available 
>in Europe or here would be ideal. Thanks.

REPLY:
In my homebrew 3kV power supply, I used a high density polyethylene cutting board I bought in WalMart's kitchen department for a couple dollars. Works fine, but I don't know about it's temp rating. In my design, I used a fan to cool things down and I placed the capacitor bank right in the outflow of the fan, so temp is not a problem. Be careful if you place it somewhere else.

73, Bill W6WRT
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