The Collaborative International Dictionary of English v.0.48:

Timbal \Tim"bal\, n.
   A kettledrum. See Tymbal.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tymbal \Tym"bal\, n. [F. timbale, Sp. timbal; cf. atabal;
   probably of Arabic origin. Cf. Atabal, Timbrel.]
   A kind of kettledrum. [Written also timbal.]
   [1913 Webster]

         A tymbal's sound were better than my voice. --Prior.
   [1913 Webster]