Now you can get the power of the M.O.P.A. Amplifier with the powerful features of the GB4000. The MOPA amplifier was designed based on an in-depth analysis of the equipment used by the original frequency researchers.
Though it has been updated with modern electronics, it still uses the RF tank coil and 812a vacuum tube needed to produce the original analog sine wave and square wave output of the original equipment.
We now have Banana-to-Pin adapters available. If you need to connect your GB4000 to an accessory that uses a Pin type connector instead of a Banana type connector, these little adapters are exactly what you need.