This answer should be interesting. >> > ** so increasing drive will not eventually cause grid current in a well >> > designed AB1 amp? >> >> it can't. If it can then it is an AB2 amp. >> >> _-_-bear WB2GCR >> > >So how would you "design an AB1 amp that could never go into grid current" >with >increased drive? > >73 >Gary K4FMX - Rich..., 805.386.3734, www.vcnet.com/measures.