National / 6414-NATIONAL GOLDLINE MATCHED PAIR

6414-NATIONAL GOLDLINE MATCHED PAIR 6414-NATIONAL GOLDLINE MATCHED PAIR Click on image(s) above to view larger
£25.00

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Special Matched Pair

This 6414 was made and tested by Raytheon USA for National Electronics as part of their premium selected Gold line range. This is high grade valve was selected for computer circuits and was used extensively by IBM and the American Military.

The 6414 was only made in the USA and has a 10,000 hour heater rating. The 6414 Raytheon was selected as the factory of choice by National Electronics USA as It is a more ruggedly built, offers long life rating and is made to full military specifications. National Electronics then after a burn in process selected the valves and then marketed them as their premium Gold line range in Gold boxes.

We offer these in Specially Selected Balanced triode sections in matched pairs for use in studio equipment where matched pairs are required

They also have passed the following tests:

Gain (m/A)
Transconductance (mA/V)
Output Drive Tested
Noise 1 (signal to noise)
Noise 2 (Aural)
Microphonics Test 1(Ambient)
Microphonic Test 2 (Shock)
Cathode Test
Grid Leakage Test

The valves come in the original National Gold line box with the 6414 made in the USA printed on the glass in matched pairs.

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