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6N3P Vacuum Tubes (see also 6Н3П 2C51)

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Our 6N3P Replacement Upgrade Vacuum Tubes improve sound performance. All our vacuum tubes can be electronically matched to your requirements.


The 6N3P, (Russian: 6Н3П), s a Russian-made direct equivalent of the 2C51 medium gain dual triode vacuum tube. Currently very popular for use as an amplifier, and traditionally for mixers, oscillators or multi-vibrators over a frequency range AF through VHF. The Russian tube is slightly larger in size than the American tube. A ruggedized/industrial version of the tube is designated 6N3P-E (Russian: 6Н3П-Е).

1. Our Premium 6N3P Vacuum Tubes:

We stock a rare ruggedized 6N3P called 6N3P-e by former Reflektor Factory, Russia c.1980s. These were made to Military Specification including nickel plated pins for good conductivity and gold grid for improved sound. Life expectancy 5000hrs. A well made vacuum tube which will deliver excellent results and reliability.

All our Vacuum Tubes are Fully Bench tested and therefore guaranteed NO leaks or shorts .

These tubes are a very good sound Upgrade because they have been fully tested here in the UK!

Because many pre-amplifier tubes are microphonic, we supply Free BS310 Standard heat resistant silicone anti-vibration dampers.

Our Dampers reduce ‘ringing’ in the vacuum tube glass envelope thus improving playback quality.

Full fitting instructions are included.

Never buy these tubes from an untrusted source. Vintage tubes can cause serious damage untested.

You can download a .pdf User Manual for free here

We check all valves extensively within the UK and offer a full 30 Day Guarantee. No lengthy returns or customs duties! *

More Info

Additional information

Weight 0.26 kg

Single, Matched Pair, Matched Trio, Matched Quad

Returns & Delivery

We offer a No-Quibble 30 -Day Return & Refund on all our Products. Please refer to our Return & Refund Policy for full details.

We aim to ship next Working Day by your chosen Postal Service. See our Shipping Policy for further details.


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