This listing is for a single vintage Tesla E180F pentode. Manufactured in Czechoslovakia to high military standards, these valves feature Grey Plates and Gold Pins, engineered for stable performance and long service life in high-end audio and precision laboratory circuits.

The unit has been laboratory-verified on our Amplitrex AT1000 digital tester. Using the Percentage Method, the result below displays the performance relative to 100% factory design-center specifications (Ip = 13.0mA / Gm = 16500 µMhos).