Pair 6N3P-DR Reflector (Soviet, USSR) Tested Audio Amp Preamp Audio Stereo Vintage Radio Vacuum Tube

Military Spec , See Picture Box for Test Results , Same Date , USSR Reflector Factory , Tested , More than 10000 hours

Russian double triode  6N3P-DR (6Н3П-ДР) tube designed for voltage amplification and low frequency oscillation.

Equivalent to the 2C51 / 5670 / 6CC42.

         RUSSIAN TUBES – LAST LETTERS (suffix) MEANING:

V (B) - Tubes of increased reliability and mechanical strength.

E - Long-life tubes with guaranteed life of more than 5,000 hours.

EV (EB) - Tubes of increased reliability, mechanical strength guaranteed life of more than 5,000 hours.

D (Д) - Extremely durable tubes with guaranteed life of more than 10,000 hours.

DR (ДР) - Tubes of special, very high reliability, mechanical strength, and guaranteed life of more than 10,000 hours.

I (И) - Tubes designed to operate in pulsed mode, characterized by increased emissivity of the cathode.

K - Tubes with high vibration resistance.

R (P) - Tubes of special, very high reliability, mechanical strength.

OS (ОС) – Tubes special assembly (for the aviation industry).

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Shipping charge of $5.95 to anywhere within the lower 48 United States

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