7F7 Valve

This perfectly balanced single tube RCA 7F7 tube was made in the USA. Loctal tubes are exactly the same as the normal octal based tube, just with a different base that was designed to be used in very high vibration environments like main battle tank comms gear. This means lower microphonics, stronger tubes, and longer heater life. This tube is a great replacement for 6SL7 tubes and they sound much better than any new production tube that you can find. You will need to purchase an adapter to use this in place of a 6SL7. Foto originali