FS: 5000 t-shirts, various colours, with caption

"The (normalized) transfer function for 'stage n', n=1 to 8 (so 30dB is n=5), appears to be H(s)=1/((s+1)^n+k*(s+1)^(2n-8))"

and photo of tim poking out his tongue.

diavolo pizza or nearest offer.

stu