BIRD Digital RF

Designed to function in AC and DC powered receivers

New old stock * No longer available for export.
MFR: Sylvania
SKU: 6X5WGT

Designed to function with one pentode as a video amplifier and the other as a sound IF amplifier, AGC amplifier, or sync separator.
MFR: RCA, Sylvania, GE
SKU: 6Y9
New old stock * No longer available for export.

Designed for use as a high-gain radio-frequency or intermediate-frequency amplifier in a radio receiver.
MFR: Fomoco, Raytheon
SKU: 6SK7GT
New old stock * No longer available for export.

Designed to function as a power rectifier in AC or DC powered circuits.
New old stock * No longer available for export.
MFR: Sylvania
SKU: 6Z4

Beam Power Tetrode Black Plate Matched Pair (2).

New Old Stock * No Longer Available for Export
MFR: Sylvania * Made in USA

SKU: 5933-MP-SYL

New old stock * No longer available for export 
MFR: Sylvania
SKU: 6159-SYL

NOTE: PICTURE FOR REFERENCE ONLY. BRAND / CONDITION MY VARY.

This tube is designed to be used in audio amplifiers.
New old stock / New In Box * No longer available for export
MFR:Sylvania * Made in USA
SKU: 6V6GTA-SYL

This tube is designed to be used in audio amplifiers
New old stock * No longer available for export
MFR: Sylvania
SKU:6V6GT/G-SYL

"Fat Boy" Full Wave High-Vacuum Rectifier
New old stock * No longer available for export
MFR: Sylvania
SKU: 5AR4-SYL-FB