Description

6F1P tube (~ECF80 ~6BL8 ~6AX8) NOS Triod-pentode HiFi Can be used for sound amplifiers. 2pcs in Lot! Original vintage tubes. Heater voltage, 6.3 The anode voltage of the transistor, in 100 Bias voltage on the grid triode In -2 Anode voltage pentode, in 170 The voltage on the second grid of the pentode, in 170 Bias voltage on the first grid of the pentode, in -2 Filament current, mA 430 + - 25 Current in the anode circuit of the transistor, mA 13 + - 5 Current in the anode circuit of the pentode, mA 10.5 + - 3.5 Current in the circuit of the second grid of the pentode, mA not more than 4 Transconductance of the transistor, mA / V 5 + - 1.5 Slope pentode, mA / V 6.2 + - 2.2 The gain of the transistor about 20 The internal resistance of the pentode, MW 0.4 Input impedance pentode at 50 MHz, k about 10 Input impedance pentode at 100 MHz, k about 2 Equivalent noise resistance of the pentode, k about 1.5 I send only by air transport. If you buy more than 1 of my product, I will make a combined delivery and reduce the cost of delivery. All goods are packed to avoid damage during a delivery. We accept payments through PayPal. Payment must be received during 10 days after auction end. Otherwise we can't guarantee availability of it. We are not responsible for any customs tax that can be charged in a country of delivery. Please, get known the customs rules in your country before bidding. Enjoy your tube sound!