Also like the Ha 5 K 39, all vacuum tubes are of type RV 12 P 2000, except for the power pentode in the transmitter's final amplifier. However, here, an LS 50 is used, rather than the RL 12 P 10.LORENZ TRANSMITTER/RECEIVER "LO 70 KL 40" (SHORT/LONG-WAVE, 70 WATT)...