[sdiy] video buffer

[Ian Fritz]

At 08:06 AM 6/7/2003, Batz Goodfortune wrote:
>Y-ellow All.
>         I don't suppose anyone could point me at a video amp circuit that 
> doesn't use anything exotic by any chance? I wouldn't ask but everything 
> I've found so far uses some part or other that I either, haven't got, 
> can't obtain, or isn't worth spending the bux on. I'm kinda hoping 
> someone might have something stashed away that uses a couple of BC109s or 
> something. :)


The National App Note AN32, "FET Circuit Applications", has a number of 
FET-bipolar amps and buffers for video applications.  The figure titled 
"High-Impedance Low Capacitance Wideband Buffer" on page 7 should do the job.

   Ian