Philips 212 Tone Arm issue

The bulbs don't cause 'spikes' in the speakers.

The bulbs you got from Amazon draw 10x the current so the circuit doesn't work right. This bulb is much closer:
http://www.bulbtown.com/359_MINIATURE_BULB_E10_BASE_p/359.htm
They can also be replaced by LEDs:
https://www.mouser.com/ProductDetail/Lumex/SSP-D29E10SUGC-6V/?qs=0JU57JYmZjsGYWqJb1FJoQ%3D%3D

Thank you gentleman - I really appreciate the quick response here. I haven't had much time lately to revisit this. Through a recent attempt I actually made it worse, which was the perfect confirmation needed to confirm your suspicion. There was a cable binding the physical movement of the tone arm, which was one of the cables I had altered to install the new motor. I bound and tied those down better, and we seem to be back in business! (*knock on wood)

Another question - I do think I have a short or grounding issue as very minor bumps to the player or entertainment center holding it give quick feedback "spikes" through the speaker (even if a record isn't playing). I suspect it may be because 2 of the bulbs are out. Any idea where I can get new bulbs for the 45/Stop/33 buttons?

I searched online before and tried some from Amazon but they did not work (though they were the right size).

Thanks again

Checking the arm wiring is a good suggestion. If its binding from the 'table being flipped over that could easily do it.

Check to see if it is hanging up on the tonearm "lift", which I recall is curved/scooped.

If not then check the wiring leading into the base of the tonearm.

I can't remember if the 212 has a motor stop sensor (the 312 has a motor stop and/or stop-lift sensor).

DeKay