telefunken ef804 true nos diamond mark made in berlin tube tests nos on at1000

telefunken ef804 true nos diamond mark made in berlin tube tests nos on at1000

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NOS NIB EF 804 TELEFUNKEN X3 VACUUM TUBES SILVER SHIELD

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2 Excellent strong Telefunken EF804 tubes #BM78

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2 X EF804S SIEMENS TUBE. 1960s TELEFUNKEN PROD. HIGH GAIN. MTCH. PAIR. 25.CB400

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Telefunken EF804 Tested Very Strong 3.2mA Amp Guitar Audio Vacuum Tube

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Telefunken EF804 O-Getter Red Painted Tip Silver Plate Diamond on Bottom Strong

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EF804S Telefunken NOS NIB Low Noise Diamond Bottom branded Siemens

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