Receiving Tubes

Can be used as a substitute for the 6LF6
New old stock * No longer available for export
MFR: RCA
SKU: 6KD6-RCA

Very popular TV Sweep Tube used in Palomar Electronics amplifiers in 1970-80's.  These tubes are New Old Stock.  Glass Envelope. 
The 6KD6 had small plate cap.  
Size: 4.52" tall from top of Plate cap to bottom of pins, 3.7" tall (Glass Envelope), 1.5" Diameter
New Old Stock * Not Available for Export
MFR: ECG/Sylvania

New old stock * No longer available for export
MFR: GE Brand
SKU: 6KD6-GE

Substitute for the 6LF6
New old stock / New in box * No longer available for export
MFR: Lindal
SKU: 6LX6-LIN
Picture for reference only.

Substitute for the 6LF6
New old stock / New in box * No longer available for export
MFR: Zenith
SKU: 6LX6-ZEN
Picture for reference only.

Substitute for the 6LF6
New old stock / New in box * No longer available for export
MFR: Westinghouse
SKU: 6LX6-WH
Picture for reference only.

Substitute for the 6LF6
New old stock / New in box * No longer available for export
MFR: Quasar
SKU: 6LX6-Q
Picture for reference only.

Can be used as a substitute for the 6LF6
New old stock * No longer available for export
MFR: Raytheon
SKU: 6KD6-RAY

Can be used as a substitute for the 6LF6
New old stock * No longer available for export
MFR: Westinghouse
SKU: 6KD6-WH