CIRCUIT BOARD ON BLACK END BELL 21k DTM MOTOR
To remove the “shunt capacitor” – use a very sharp, small set of dykes/nippers to cut the circuit board on One side, Away from the end bell. If you cut too close to the end-bell and you may clip the Solder Tab coming out of the motor (connected to the brush inside). Don’t cut the other side yet (doing so may flex the circuit and hence the solder tab.)
Now, de-solder the piece of the circuit connected to the solder-tab, carefully pull off the circuit board piece. Now desolder the circuit piece on the other side and pull away from the tab.
ALTERNATIVE: using a small set of dykes, you may be able to cut off the capacitor ‘block’ in the middle of the board – problem solved in seconds!
NOTE: Some people like to take off the capacitors, but they should not really affect analog performance. They are “shunts” that short-circuit radio frequencies picked up across the motor’s solder-tabs (which can act as an antenna). They are mainly effective to prevent any problems with digital systems (with retroactively installed chips for Carerra or Scaley tracks).
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"... get on your bad motor scooter and ride!"
Sammy with Montrose