Now this you didn't see coming....
Crossposted from diyaudio: http://www.onsemi.com/pub/docs/pcn/PD20685.pdf
On-semi are discontinuing all of their TO-92 products because of a disagreement with a subcontractor. List includes all the MPSWs....
//UFN
mpsa06/mpsa56 can be substituted everywhere except the outputs on the kgdynalobal
(have to check power levels on dynahi)