6E-6H

Designed for a high plate voltage operation of an RF amplifier in the VHF tuner of the TV receiver.
MFR: GE, RCA, Sylvania, Tung-Sol, Zenith
SKU: 6EV5
New old stock * No longer available for export.

6EU7 Tube High Mu Twin Triode

Designed to be used in AM and FM detections purposes
MFR: Emerson, Tung-Sol, GE, Sylvania
SKU: 6EB5
New old stock * No longer available for export.

Designed to be utilized in time base circuits of color TV receivers.

New Old Stock * New In Box * No longer available for export
MFR: Philips ECG
SKU: 6EC4-EY500A-ECG

Data Sheet 

Designed to operate in VHF IF amplifiers
New old stock * No longer available for export.
MFR:GE, RCA, Sylvania
SKU: 6EH7

Designed to be used as a triode oscillator and pentode mixer in TV receivers.
MFR: GE, Sylvania, Westinghouse, RCA
SKU: 6EH8
New old stock * No longer available for export.

Designed to be used in IF amplifiers.

New old stock * No longer available for export.
MFR: Raytheon, El-Menco, RCA, Amperex
SKU: 6EJ7

Designed to be used as a vertical deflection amplifier service in TV receivers utilizing 110 degree deflection systems

New old stock * No longer available for export.
MFR: Philco, Zenith, RCA
SKU: 6EM5

Section one diode is a medium mu vertical direction oscillator and section two diode is a low mu vertical deflection amplifier.
MFR: RCA, Sylvania
SKU: 6EM7
New old stock * No longer available for export.