[AMPS] Need Heathkit SB200 schematic

[measures]

>
>Anyone have a jpeg scan of an SB200 schematic or know of a web site 
>containing the schematic ?
>
>I am installing a Harbach soft key board and am having some voltage problems 
>with trying to rectify one side of the filament transformer to obtain 3v DC.
>
I would convert the sb200 from negative polarity RL control to positive.  
Basically, this envolves getting rid of the inane biasing sheme and 
converting to something like the sb-220 configuration, with high-speed 
switching to fix the hot-switching problem.  .   Our soft-key parts kit 
goes for 50 cents.  It will switch 300v positive at 500mA in around 1 uS. 
 .  

cheers, Eric


-  Rich..., 805.386.3734, www.vcnet.com/measures.  


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