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6P1 – Tube Equivalent 6P1P-ev Vacuum Tubes

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We uniquely offer a choice of Standard or Premium 6P1 Tube Equivalent  Upgrade Vacuum Tubes. It’s up to you!

Because our Vacuum Tubes are long life USSR military valves, they are extremely rugged and very reliable.

Our vacuum tubes are an NOS Soviet direct Upgrade.

Additionally, they Fully Bench tested both in the Russian federation by our business partners and here in the UK, so No Leaks or Shorts!

As a result of being Manufactured to a high specification in the Former USSR, these valves are highly robust.

Our 6P1 direct Tube Equivalents:


6P1P – Svetlana Plant, c. early 1970s. Robust build good affordable upgrade. Expect sonic improvements

Life expectancy: 1000 hrs. Gold Grid.


6P1P-ev – Svetlana Plant, c.1980s. Ruggedized Military build with exceptional sonic signature. The best choice for a 6P1 upgrade.

Life expectancy 3000hrs. Gold grid. Nickel Plated Pins for improved signal transfer.

Military grade means improved tighter and deeper bass! Open mid-range, detailed treble, better timing and overall cohesion.


Full fitting instructions included.

Full Kits Available For:

Douk Audio 6P1 Class A Single-Ended Stereo Amplifier

Download a .pdf User Manual for free here

*Always check for the correct vacuum tube in your Manufacturer’s User Manual.

Fitting the wrong tubes can be dangerous. It can damage your amplifier and can invalidate your 30-Day Warranty

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

 Tested in the UK. 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


Standard, Premium

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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