[HAM] Wax caps measured and then placed in four pans at the Hammondfactory, was Recapping

[Brad Baker]

All this stuff about cap matching and tolerances and procedures in the
factory is almost meaningless if in the Hammond factory the Tone
Generators were calibrated after the caps were installed. (It doesn't
make much sense for them to be calibrated *before* the caps were
installed).  The tonal balance is done primarily by the TG
calibration. Having a proper filter center frequency will perhaps make
the calibration procedure easier, or more consistent from unit to
unit.  A mistuned filter might affect harmonic content or noise level
associated from a tone, but not the tone level in a calibrated TG.

One approach to fixing a dull organ might be a TG recalibration.  If
such an organ were one with badly mistuned filters with wax caps whose
values were 200% of the stock values then it may not be possible to
calibrate that TG without installing new caps.  The new caps would
approximately center the filter response on each associated tone, and
would provide an increase in the adjustable tone level thereby.

It has been stated several times on these lists over the years, and
anecdotal evidence exists, that recapping without recalibrating is
risky - you may not like what you end up with.  However, there is also
anecdotal evidence that the converse is true - that a recap followed
by a proper recalibration can give perfectly acceptable organ.

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