Price Ranges for Thermionic Valves

The price range for thermionic valves, also known as vacuum tubes, can vary depending on the type, brand, and quality of the valve. On average, prices can range from a few dollars for basic, common types to several hundred dollars for high-end, vintage, or specialized valves. Rare and highly sought-after vintage valves can sometimes fetch prices in the thousands of dollars. It's recommended to research specific brands and models to get a more accurate idea of pricing in the current market.