Up to ten used 6HF5 for your WRL/Galaxy 2000 Linear, or a Swan, or a Hallicrafters. All are GE All just checked on my Hickok 800A. They all check definitely good. $8 each. $75 for all (if still available) Priority Mail $4.50 per total shipment. Eugene Rippen, WB6SZS 105 Donnington Ave. Auburn, CA 95603