frobnic

I found some other possible -and what they said- better transistors at other forum and i was wondering you-audioguru- could tell me if they work better than the original ones? The transistors are for T!: 2n2222,2n2222a,2n2219,2n2219a,bsx20 or 2n3904 T2: 2n4427,2n3866,2n3924,2n3553

Does this circuit really work or not ? I thought I could build it but is it worth it i would be happy with two or three watts if it just works. I have experience about building electronic circuits but i cant say if this works or not can you? frobnic Finland,Helsinki