This is a superb New Old Stock Russian 3pcs of 6N2P double triode valves (includes the one under the cover!) which are superior versions of the far eastern modern valves used in the T10 and T11 Little Bear RIAA preamplifier, along with a military spec 6Z4 rectifier valve which should prove to be far more reliable than the Chinese valve supplied with these units. These Russian valves were built to a very high quality for the Russian military in the 1970's to 1990's and are an ideal upgrade for the Chinese valves supplied in the standard amplifier. Allow 24 hours for burn in to develop best results. Note that all our Soviet valves are responsibly sourced outside of Russia and that the completed Little Bear preamp is shown here to show the valves in place and is not included!

This will fit all versions of the Little Bear that take either 3 x 6N2 or 3x 12AX7 (if fitted with the switch to change each socket to 6N2) plus the 6Z4 rectifier.

When we fitted these valves to our test unit, we noticed an instant improvement in stability and lower noise, a very worthwhile upgrade! Also note that we fitted a replacement screened socket with screening can in the V1 position, which vastly reduced hum pickup. 



Supplied as a complete set of four replacement valves at a great price.


See our store for other listings for 6N1P, 6N5PJ, 6SN7, 12AX7, 12AT7, 12AU7, 12AX7B and for "old school" construction genuine 7025 preamplifier valves as well as matched pairs of 6V6, 6L6 and EL34.



Sent by First Class post for fast delivery.

 

<Handy hint> Changing your valve


Once you have the back or cover removed from the amplifier/radio/record player you are changing a valve in it's easy to change. First, the safety warnings;

Unplug the unit from the mains before removing any covers.

Don't try to change the valve when the unit has been recently switched on... valves get hot enough to burn you!

Try not to touch anything inside the unit except the valve you are changing as some parts can hold high voltages even when it has been switched off for some time.

Now for the easy bit.... hold the valve you are changing between two fingers and your thumb and rocking it slightly to free its pins, pull it firmly straight up and it will unplug. You will see that the pins form a circle with an inner plastic/Bakelite peg with a bump on one side.

Take a look at the socket to see where the indentation on the centre hole is and taking the new valve, line the centre peg up correctly with the gap and again rocking it around slightly (only a few degrees) push the new valve in until it is firmly seated. Replace back cover, switch on.... all done!

Preamp valves like this double triode don't need any further setting up or baising, so thats all there is to it. Changing these valves can make your sound instantly brighter and punchy, so why not spend a few pounds and bring the life back into your amplifier!



Should you be in any way unhappy with your purchase within 28 days of purchase, you may return the item for a full refund of the purchase price.




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