The Grimeton (SAQ) transmitter is based on an Alexanderson alternator and, hence, supplies orders of magnitude less harmonic energy than a spark gap transmitter

The Grimeton (SAQ) transmitter is based on an Alexanderson alternator and, hence, supplies orders of magnitude less harmonic energy than a spark gap transmitter, yet it still falls woefully short of current spectral purity standards. It still goes live a couple of times a year, though - on Christmas Eve and on the inventor's birthday. It is not inconceivable that a spark gap transmitter could operate under similar constraints - limited duration, schedule published well in advance &C. However, I believe it would be a mistake to restore it to working condition - at that point it is no longer the wireless set from the Titanic, but a replica built using some original parts. Meh.