NOS Chesterfield Deluxe Red Tube 6.00-20/21 Rare!!!

The product is a rare NOS (New Old Stock) Chesterfield Deluxe Red Tube model 21. This vintage electronic item falls under the Vintage Audio & Video category and is highly sought after by collectors and enthusiasts. With a unique color and model number, this tube is sure to be a valuable addition to any vintage electronics collection.