6P23P

The 6P23P (Russian: 6П23П) is a Soviet beam tetrode tube developed for high-frequency and wideband amplification applications. Manufactured at the legendary Reflector factory in Saratov, this tube was engineered for precision, linearity, and reliability — ideal for audio output and RF stages. Often compared to the EL83 or 6CH6, the 6P23P provides similar electrical characteristics. Excellent choice for DIY tube amplifiers, vintage radio repairs.

9-pin base. Pin arrangement: RSH8.

Equivalent Types Tubes: EL83, 6CH6 (with changes to the amplifier’s electrical circuit)

• Stamp of technical control department of the manufacturer ” ОТК “

Technical specifications:

• Heater voltage 6.3 ± 0.3 V
• Heat current 750 ± 60 mA Nominal anode voltage (constant) 300 V
• Limiting anode voltage (constant) 350 V
• Anode current 40 mA Limiting cathode current 100 mA
• Grid voltage of the first (constant) -16 V
• Grid voltage of the second nominal (constant) 200 V
• Limiting grid voltage of the second (constant) 250 V
• Grid current of the second no more than 5 mA
• Power dissipated by the anode, maximum not less than 11 W
• Power dissipated by the second grid, maximum 3 W
• Slope of the characteristic 4.5 mA/V
• Internal resistance 44 kOhm
• Output power 11 W
• Input capacitance 7.5 pF
• Output capacitance 4.5 pF
• Pass capacitance no more than 0.1 pF

Operating time not less than 1000 hours.