On 7/6/2010 11:13 PM, J.L. wrote: > I could not find any cross reference for either of these NPN transistors but > the 2N2222A seemed to do just fine. > > Thanks for everyone's help. > > Joe > 1854-0003 (subsequently replaced by 1854-0637) crosses to Moto/On Semi SS2199. 1854-0023 cross to 2N2484 1854-0637 crosses to 2N2219A -ch