Actually I feel very stupid. My brain was on vacation when I decided to
add wiring to my 909. It is completely obvious that all I needed was a
6V adapter that I could plug into a 12V source and it only had to plug
into the ac adapter jack. I must have been thinking... well, never
mind. My desire to do all of this stems from some sort of obsessive
compulsive disorder that inclines me to want more power. The thought of
merely AA batteries that are half full powering my radio makes me
shudder. I also hate to change them out (another disorder). Anyway, I
removed the wores I added and merely got an adapter for my 6V converter
that fits the ac adapter input jack. Voilla!
Now I can use ac, AAs or 12V from my truck or other 12V source.