This listing is for a single NOS type 89 tube by RCA with a brown base and is their military grade, USN CRC.

Also known by US military identifier VT-89.

The type 89 is a triple-grid power-amplifier tube of the heater-cathode type recommended for use in receivers with 6.3 v heater supply.

Shipping: $3.45 Each Additional: $1.00