Check the listing for details. RCI 2950DX MOSFET upgrade. Condition: New. Listed at 26.99 USD. This modification kit contains all the parts you need to install MOSFETs in place of the original bipolar transistors in your 2950DX. This kit will replace the driver and finals with MOSFETs. Detailed instructions are included. The final transistor installed in most CB and many Amateur radios were discontinued and are rapidly diminishing. They are hard to find and very pricey. If your final has been damaged now is the time to make the conversion to a MOSFET. All high powered devices are changing to MOSFETs. They will be widely available for many years to come. In most cases they produce more power and in all cases they give more modulation. On most radios the time to make the change is about 1.5 hours. You need only some basic electronics knowledge and good soldering skills. Don't be fooled by those cheap kits. These Fairchild MOSFETs are very rugged and forgiving.