E810F Datasheet PDF ( Pinout ) - Special Quality Long Life Pentode
E 810F, Tube E810F; Röhre E 810F ID19040, Vacuum Pentode | Radiomuseum.org
E810F @ The Valve Museum
IS THIS A REAL E810F ??? | diyAudio
E810F Mullard Gold Pins Made in GT.Britain Amplitrex Tested #2978001 – Audio Tubes
7788/E810F Amperex Gold Pin Pentode Tube. Designed to operate as a wide band amplifier. New old stock. No longer available for export. MFR: Amperex. SKU: 7788.