6BL8

The 6BL8 (European: ECF80) (Russian: 6Ф1П) (P/N 154-0278-00) is a triode-pentode combo vacuum tube with a B9A (Noval) miniature 9-pin base.

Used in

Instrument	Manufacturer	Class	Model	Description	Introduced
2B67	Tektronix	Plug-in	2B67	Time base plug-in	1962
3B1	Tektronix	Plug-in	3B1	10 MHz time base plug-in	1962
3B1S	Tektronix	Plug-in	3B1S	Sampling time base plug-in	1961
3B2	Tektronix	Plug-in	3B2	Delaying timebase plug-in	1963
3B3	Tektronix	Plug-in	3B3	Time Base plug-in	1962
3B4	Tektronix	Plug-in	3B4	Timebase plug-in	1964
503	Tektronix	Oscilloscope	503	450 kHz differential-input scope	1960
504	Tektronix	Oscilloscope	504	450 kHz scope	1960
506	Tektronix	Oscilloscope	506	20 MHz scope	1964
516	Tektronix	Oscilloscope	516	15 MHz dual-trace scope	1960
549	Tektronix	Oscilloscope	549	30 MHz storage oscilloscope	1965
561	Tektronix	Oscilloscope	561	10(4) MHz "General Purpose Scope"	1961
561A	Tektronix	Oscilloscope	561A	10(4) MHz "General Purpose Scope"	1962
564	Tektronix	Oscilloscope	564	Split-Screen Storage Scope	1962
565	Tektronix	Oscilloscope	565	10 MHz dual-beam scope	1962
567	Tektronix	Oscilloscope	567	Sampling scope	1962
67	Tektronix	Plug-in	Type 67	Timebase plug-in	1961
Telequipment D52	Telequipment	Oscilloscope	D52	6 MHz dual-beam scope	1968
Telequipment D56	Telequipment	Oscilloscope	D56	15 MHz 2-ch scope	(?)
Telequipment S31	Telequipment	Oscilloscope	S31	Low-cost service scope	1958
Telequipment S32	Telequipment	Oscilloscope	S31	6 MHz service oscilloscope	1960
Telequipment S51	Telequipment	Oscilloscope	S51	3 MHz tube scope	(?)
Telequipment S52	Telequipment	Oscilloscope	S52	3 MHz dual-channel scope	1968