KT90 ELECTRO-HARMONIX MATCHED PAIR

EH Gold tubes are new designs, new manufacturing techniques, are of excellent quality and made in the original Russian factory. Today’s industry standard with many OEMs relabeling EH Gold vacuum...

The 6550EH offers excellent linearity, power handling capacity, heat dissipation. Four-pillar construction and mica spacers maintain a rugged mechanical reliability. Classic tone is sustained at a...

The 6550EH offers excellent linearity, power handling capacity, heat dissipation. Four-pillar construction and mica spacers maintain a rugged mechanical reliability. Classic tone is sustained at a...

GOLD PLATED GRID   The 2A3EH gold vacuum tube is a triode with coated filament in the glass bulb, designed to amplify low frequency power in radio engineering devices.   Code QD-2A3EH Heig