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The 6AK8 has three separate electrode sections within the envelope. The triode and two diodes share a common cathode and one diode has a separate cathode.
The 6AK8 was specifically designed for use in the detector stage of early FM and FM/AM radios. The triode section providing the first audio amplification, one half of the double diode for AM detection and the single diode and one of the diode pair for FM demodulation, probably in a ratio detector circuit.
It should be noted that the operating conditions for this Cossor valve differ from the sensibly equivalent EABC80 from Mullard.
Seen at an angle to the broad face of the anode the slender box construction of the electrode assemblies is revealed.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 58 mm tall.
Pin Connections
The 6AK8 was specifically designed for use in the detector stage of early FM and FM/AM radios. The triode section providing the first audio amplification, one half of the double diode for AM detection and the single diode and one of the diode pair for FM demodulation, probably in a ratio detector circuit.
It should be noted that the operating conditions for this Cossor valve differ from the sensibly equivalent EABC80 from Mullard.
Seen at an angle to the broad face of the anode the slender box construction of the electrode assemblies is revealed.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 58 mm tall.
Pin Connections
Seen at an angle to the broad face of the anode the slender box construction of the electrode assemblies is revealed.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 58 mm tall.
Pin Connections
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 58 mm tall.
Pin Connections
Pin Connections
