Trek II GNR-1A / GNR-2A generator note replacement

A cost effective alternative to removing and disassembling Hammond tone wheel generators when defective frequencies are encountered. Simple three wire installation. Generates a sine wave output of any tone wheel frequency. The GNR-1A has a built in power supply and will replace one frequency. Each GNR-2A will replace a single additional frequency, but has no power supply, relying on that of the GNR-1A. As many as three GNR-2A units may be powered by a single GNR-1A.

NOTE: The GNR-1A and GNR-2A are not usable to replace pedal frequencies on spinet organs, since these tone wheel outputs are not sine wave signals.