base plate until the stack of washers provides a rough estimate of just how much more vertical height is
needed. Once the total base plate thickness is determined, then decide what “shim” material you want
as the final solution. You may also contact Radial Audio to request a special order for a Plexiglas shim
milled to match the base plate, or for a single standard base plate for the total base plate height
needed.
Above: (left) tower internal, with elevator and elevator rod; (right) top view with channel in inside.
Each vertical tower contains an elevator that raises or lowers the Plexiglas channel in minute
increments. An M6 aluminum bolt runs vertically thru each elevator part. At the top of the aluminum
bolt is a hex void where the elevator adjustment knobs can be inserted. Using the elevator knobs in
duality, you can raise or lower the tone arm’s channel by approximately (+.75”, -.125”) A thicker base
plate is simulated, matching the turntable platter’s height.
For turntables with massive height platters, start by adding pairs of “blocks” under the base plate, until
an acceptable height is achieved. At this point, fabricate a sub-base with the same (length x width)
dimensions as the base in hand: 2.476 x 12”, plus the additional height needed). Radial Audio can mill
an additional height sub-base, or a single thicker base to your specification.
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