The CV3508 (commercially the 6201) is a special quality version of the ECC81 (12AT7) VHF double triode. The civilian name is M8162. These valves are designed for for RF stages, oscillators and frequency multipliers.
The 6201 Type designation and USA.
The control grid is wound on copper rods and the double micas are present for protecting against vibration an shock as would be found in aircraft or vehicles.The thin glass tube envelope is 21 mm in diameter and excluding the B9A base pins, is 48 mm tall.References: Data-sheet & 1040. |