Drake L-4B Make Drake Model L-4B Year 1969-1978 Orig Price $750.00 (1973) Description Linear Amplifier Power Output 2000 Watts PEP-SSB, 1000 Watts AM, CW, RTTY Weight 32 lbs43 lbs (Power Supply) notes Class B, Grounded Grid. Two 3-500Z tubes Drake L-4B Dimensions 13-15/16 x 7-7/8 x 14-5/16 inches