TUNA TOPPERA 5w RF amplifier in a TUNA CAN w/ multi-band capability! TEXAS TOPPERA 5w RF amplifier w/ multi-band capability! Topper Band Module packA pack of 3 band modules to extend Topper operation to 80m, 30m & 20m! TUNA HELPER. An RF sensing automatic T/R switch. TUNA POWER SYSTEM. A SMART charger & 12V distribution system!. TUNA TUNAH. A switched inductor antenna tuner!