This listing is for a single NOS 6688 Amperex tube with gold pins.

This Tube Test NEW 100% and Passes life test.

Substitutes: 7KZ6, 7KY6, 7788, 9KX6.

The 6688 is a special quality UHF high-slope RF pentode primarily intended for use in wideband amplifiers in telephone carrier systems, radar equipment and measuring equipment.

Shipping: $3.45 Each Additional: $1.00