Type 77 Ken-Rad NOS amplifier vintage audio radio vacuum tube valve ST 277

Ratheon Type 78 Pentode Valve/Tube - Tested Good

Vintage Tested Strong Tubg-Sol Type 77 Amplifier Radio Vacuum Tube Mesh Plate

Vintage Sylvania 77 Pentode vacuum tube. Tests Strong See Picture.

5 NOS Vintage Phenolic Wafer 6-pin Vacuum Tube Sockets 1.68" spacing

Type 77 Vacuum Tube Used Tested Airline Radio

3 Dollar Tube - Type 77 Tube

Emerson 6SG7 Metal Vacuum Tube Pentode TV-7 Tested Good Vintage Radio Amp Valve