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PLEASE, READ CAREFULLY EVERYTHING. IT IS IMPORTANT.

About item: Russian double triode 6N3P-E (6Н3П-Е) tube designed for voltage amplification and low frequency oscillation. NEW, NOS!

Equivalent to the 2C51 / 5670 / 6CC42.

Tube is tested with professional tube Tester L3-3.

Vf = 6.3 V, Va = 150 V, Vg1 = -2 V.

la min/max acceptable value Ia = (5.5 - 12) mA.

Warning! Tubes are matched by electrical parameters (Ia), not by year manufacture or producer.

Difference < 1 %

Ia1 tube1 | Ia2 tube1 Ia1 tube1 | Ia2 tube1 | pcs

2. 12.2 mA 12.6 mA 12.2 mA 13.5 mA 2

3. 12.5 mA 11.6 mA 12.6 mA 11.6 mA 2

4. 14.6 mA 10.7 mA 14.7 mA 10.7 mA 2

We have these number of measured items in stock.

Please select pair of the list and write to us.

Price is for one matched pair (2 items).

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).

Technical data:

Filament voltage, V: 6.3;

Anode voltage, V: 150;

Resistance in cathode circuit, Ohm: 240;

Filament (heater) current, mA: 350 (+/-) 35;

Anode current, mA: 8.75 (+/-) 2.75;

Mutual conductance, mA/V: 4.8-6;

Gain coefficient: 36 (+/-) 8;

Inter electrode capacitance, pF: input: 2.8 / output: 1.4;

Operation time, h: 1500.

DIMENTIONS:

Diameter (max) 22 mm
Lenght (max) 54 mm
Mass 15 g

PLEASE, READ CAREFULLY!

SHIPPING METHODS:

1. Europe - Economy International Shipping - no tracking number.
If you wish faster delivery and tracking number, please select STANDARD International Shipping.
2. Worldwide - Standard International Shipping - with tracking number included in the cost of shipping.
3. Any order above $ 60 US - with tracking number included in the cost of shipping.

The ESTIMATED delivery time varies from 7 to 45 working days (9 weeks) to most of the countries.

Detailed info you can find in the table below.

Delivery time
% of shipments that arrive in the said delivery time
Country	working days (without holidays and weekends)
	<15	15-24	25-34	35-45	>45
	<3 weeks	5 weeks	7 weeks	9 weeks	>9 weeks
Canada, United States	5 %	85 %	7 %	3 %	0 %
Africa, South America	5 %	20 %	55 %	20 %	0 %
Japan, South Korea	10 %	85 %	5 %	0 %	0 %
Taiwan, Thailand	5 %	45 %	45 %	5 %	0 %
China, India	5 %	40 %	50 %	5 %	0 %
Indonesia, New Zealand	5 %	40 %	50 %	5 %	0 %
Israel	5 %	65 %	30 %	0 %	0 %
Australia	5 %	55 %	35 %	5 %	0 %
Russia	5 %	50 %	40 %	5 %	0 %
Europe	60 %	35 %	5 %	0 %	0 %
Others, not entered shall, countries	5 %	20 %	55 %	20 %	0 %

Items are generally shipped out within 24 (rarely 48) hours after payment has been confirmed (Holidays, Sat. & Sun. excluded). The delivery time depends on the destination, holidays, customs clearance factor and other factors.

Please, if you have a problem, DO NOT OPEN CASE on eBay before this period has elapsed or before you communicate with us.

We ship your package to your eBay address. Please update your complete address including full name and phone number during checkout. We are not responsible for any wrong or undeliverable address.

INTERNATIONAL BUYERS – PLEASE NOTE: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.

ADDITIONAL INFORMATION & QUESTIONS: The pictures are for general information only. They do not carry technical information. I apply maximum efforts to work better and better. It is very important for me to get your feedback to know, whether you are really satisfied completely! Please, contact us if you have questions - especislly in the delivery term. Please use the link "Ask seller a question".

GUARANTEES & a POLICY of RETURN: We guarantee you complete satisfaction with all our products. If you receive an item you ordered damaged or defective, we will send replacement item. We only accept returns if the items in original package you have received are not what was described in the auction, damaged or defective. If exchange is not possible money refund will be issued. All returns must be sent to Bulgaria. Item for returning must have the original tags and packing, otherwise it won't be accepted.

Thanks And Good luck!