frequncy tripler

Hi all could somebody provide me with a one transistor frequency tripler
for an arbitrary frequency,(just to se the principle)
in a simulation-file for a free avalible simulator ?

Kindest regards,
StoppTidigare

Frequency tripler is a B class transistor amplifier with collector load tuned to three times input signal frequency as you know. Shape of collector current of such an amplifier should contain as much as possible the third harmonics component of input signal for good efficiency.
Frequency tripler can be build with diodes:
http://www.wenzel.com/documents/2diomult.html