I got a 1210 with a custom made external transformer and simple LM317.
The original PSU and traffo were still in there so I tried old vs new and the mods made a nice difference.
Another big improvement came when I took out the old traffo - it's near the line the cart follows and seems to affect it negatively. Others have also noted this.
The original PSU and traffo were still in there so I tried old vs new and the mods made a nice difference.
Another big improvement came when I took out the old traffo - it's near the line the cart follows and seems to affect it negatively. Others have also noted this.
Hi Guys
I did to my SL110( 5 years ago) in a different way of all yours, I took the whole power unit out into a separate box with a extend cable, replaced those speed control with a 10 turns precision potentiometer, SL110 is the firest modle of the direct drive TT in Technic, I got it in 1972, it already 38 years old before the modification, it had a problem of speed stable, but working good now, I only use it as a belt drive TT's motor, it has the bigger torque than the later's modles , I use a very thin elastic thread as the belt to drive a more heavy platter, only thing has to do is use hand to turn both platter to run before power switch on, weight balance is a issue, and will make the sound change but this set-up come up supper, no other driving motor can be better than a direct drive TT ( better bearing, slow speed quite and smooth) the only thing concern is the torque , because the ratio is 1 to 1
Cheers Tony Ma
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