RTB 303? Hmm, the only reference I can find that might be relevant is the Roland TB-303 Bass Line synthesizer. Is that what you're referring to, or is it more obscure than that?

“They planned their campaigns just as you might make a splendid piece of harness. It looks very well; and answers very well; until it gets broken; and then you are done for. Now I made my campaigns of ropes. If anything went wrong, I tied a knot; and went on.”
-- Arthur Wellesley, First Duke of Wellington