vacuum tube
Very rare “factory matched” Raytheon Military grade 6AK5 tube upgrade now available for order!
We have managed to acquire a batch of beautiful Raytheon 6AK5 tubes. The unique part of these tubes are that they are matched in the original Raytheon factory and the value of two tubes are perfectly matched. Yes, that means the output readings of the two tubes are exactly same, which is almost impossible if [...]