GU-48 Tube Power Triode ГУ-48 eq. RCA 833А ≈ 300B ≈ 2A3 New Old Stock lot 1pc
GU-48 Power Triode Tube. The GU-48 tube generator triode, an improved version of RCA 833A tube. The GU-48 is a power triode intended for use in RF amplifier, oscillator, or class B modulator service.