Heathkit SB200 power supply upgrade boards

[Tom]

Harbach http://www.harbachelectronics.com/  has that base covered for $95. I 
bought one and it is a nice product.

Tom K3TVC


----- Original Message ----- 
From: "Mike Bryce" <prosolar at SSSNET.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Sunday, September 17, 2006 1:12 PM
Subject: [HEATH-TEMPE] Heathkit SB200 power supply upgrade boards


> Well...
>
> I've been working on a new project, a upgrade power supply for the 
> heathkit sb200 amplifier
>
> I have the artwork done and will be making a few prototypes in the  coming 
> weeks
>
> PCB will be double sided with plated through holes. Silk screened and 
> solder masked on both sides
>
> production boards will be .093 thick. prototypes will be .062 thick.
>
> Upgrades include:
>
> Flameproof resistors, increased from 7W to 10 watts
> DIodes rated at 3 amp at 1000V
> 1% resistors at 5W for metering circuits
> on board voltage divider for high voltage metering (removes the  resistors 
> used off board on the original)
>
> Will accept up to 470mF at 450V caps
> will more than likely use 150mF at 450V for production units.
>
> It's big board, 7 by 5 inches and looks like a major project to  install 
> correctly. Requires a teardown of the amplifier to get to and 
> remove/install the old and new board
>
> So, that's the poop!
>
> Anyone interested? If not, perhaps the project will go on the back 
> burner..
>
> Costs??
>
> That depends on the final cost of the pcb and the capacitors used.
>
> right now, I have the Drake L7 upgrade that goes for $100.
>
> I think the SB200 upgrade will be around that price too. Final price  will 
> have to be determined
>
> so, again... any interest?
>
> mike...
>
>
> Mike, WB8VGE
> SunLight Energy Systems
> The Heathkit Shop
> http://www.theheathkitshop.com/
>
> J e e p
> o|||||||o
>
>
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Products bought, sold or traded here is the responsibility of the
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