The pickup pole, facing the tine's tip 2 mm away: the tip's swing is the signalKey, pedestal, cam and hammer: 4.2 mm of tip for 1 mm of key, no backcheckTuning fork: tine below, tone bar above, joined in the block, and the damper felt under the tineOne note of a Rhodes Mark I, middle C, taken apart. The key's pedestal lifts the hammer by its cam, about 4.2 mm of tip for each millimetre of key, and the neoprene tip strikes the steel tine from below. Near the bottom of the stroke the crest of the cam passes the pedestal. The hammer flies the last 0.6 mm on its own, strikes, and settles back 4.0 mm under the tine, which gives the tine room to swing. A slow press stops at the crest and makes no sound. Tine and tone bar form one tuning fork at 261.63 Hz. The small spring on the tine sets the pitch, and the pickup's pole, 2 mm from the tip, turns the tine's swing into the signal. The damper felt presses up under the tine until the bridle strap from the rising hammer pulls it away, and it returns when the key comes up.