>> Looks like we could use this one:
http://elm-chan.org/works/avrx/avrxp8.png
>> Only special component required would be the pre-biased transistors or
use
>> resistors with transistors.

> Does that work with devices like the ATTiny11 that need high voltage
> programming?

The schematic shows it having a switched 12v supply to the reset line, so
YES.

Add 4 resistors - one in each base connection, and almost any small signal
NPN or PNP transistors as appropriate would work.  I'd use BC337 / BC327 but
YMMV.


        RM

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