Syncable VCLFO

[jorgen.bergfors at idg.se]

Does anybody have schematics for a voltage controlled low frequency oscillator 
that can be synced to the gate signal? That is, everytime you play a note, the 
triangle wave should start from zero, go upwards and the continue from that. I 
haven't seen this feature on any of the modulars around (Formant etc...). Of 
course, a free running mode should also be available.  Preferrably a sine wave 
output too.  

Jorgen Bergfors