$59.95High Quality Glass Air Chimney for 3-500 or 4-400 Tubes This auction is for one piece of a glass air chimney designed for use in Henry amplifiers with 3-500 or 4-400 type glass tubes. The chimney measures approximately 4 inches high by 4 inch diameter and is designed do direct air across your glass tube for optimum cooling efficiency. The item can ... More
Ceramic Tube Socket for 3-500 and 4-400 Type Tubes
$29.95Ceramic Tube Socket for 3-500 and 4-400 Tubes for Amplifier Builder This item is one good quality ceramic tube socket for any 3-500 or 4-400 tube for repairing an existing amplifier or for building a new one. The socket has silver plated contacts and is the type of socket used in Henry amplifiers. The item measures approximately 3 inches square and ... More
Glass Chimney for 3-500 and 4-400 Tubes
Ceramic Tube Socket for 3-500 and 4-400 Type Tubes