Trans-Fi Audio

Home of the Terminator Tonearm


After hearing my friends traditional idler drive in comparison with my belt drive, we both agreed the idler system was superior in controlling the bass, & having more pace & dynamics. I figured it wouldnt be too hard to add an idler to my deck.

At the same time, I was aware that turning the Lenco motor upright may be detrimental as all the weight was falling on the spindle end, which had no proper thrust plate. To this end I added a thick plate made from very hard aluminised bronze bar. It will take a while to chew through this:

I also worked out a way to add the idler wheel:

The height can be adjusted by screwing the idler arm in & out of the aluminium block. Fine speed adjustment can be obtained in this way.

The lever at the top of the motor is a handle to move the motor to engage & disengage the idler. A magnet was connected to the motor chassis to hold the motor/idler away from the platter when its not in operation. Very simple & works really well!

Here we have the completed deck. The platter, by the way, is off a G99.

I have had alot of fun experimenting with these decks. Altho unconventional, discarding the Lenco base plate & moving the motor frees up & simplifies plinth design. Your only limitation now is your imagination!