10J12S / WE310A Svetlana Pentode Valves Radio Soviet Tube Same date 08.1966 RARE

The 10J12C pentode is equivalent of Western Electric 310A (WE310A) was designed for high-frequency voltage amplification in long-distance wire service systems.

 The 10J12C pentodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxide-coated cathode.10J12S you can used in some Hi-Fi applications. Perfectly sounding.



All tubes new, military equipment and have "OTK" mark. Near equivalent: WE310A.

The tube is manufactured by the Svetlana, St. Peterburg, Soviet.

Premium quality vacuum tube


Type: 10J12S

Filament voltage, B: 10 ± 0,7

Filament current, mA: 320

Anode voltage nominal (DC), V: 250

Anode voltage limit (DC), V: 250

Anode, mA: 5,5 ± 1,5

First nominal grid voltage (DC), V: minus 3

Backlash first, uA: 0.5

Second nominal grid voltage (DC), V: 135

A second threshold voltage grid (DC), V: 180

Grid current second, mA: 1,05 ± 0,55

Third nominal grid voltage (DC), V: 0

Withstand voltage between cathode and heater, V: 150

Leakage current between the cathode and heater, uA: 20

Insulation resistance of the anode, mOm: 20

Insulation resistance of the grid of the first, mOm: 20

Slope, mA/V: 1,85 ± 0,25

Slope at a current 300 mA filament, mA/V: 1.45

The maximum power dissipation at the anode, W: 1.9

The maximum power dissipated in the second grid, W: 0.4

Output power, W: 0.4

Total harmonic distortion less than: 14%

The internal resistance of, ohms: 500

Input capacity, pF: 5,8 ± 1,2

Output Capacity, pF: 12,5 ± 3,5

Capacitance checkpoint, pF: 0.03

Criterion of durability:

- transconductance, not less than, mA/V: 1.3

- backlash first, no more than, mkA: 1.5

Weight 50 g

Working conditions:

- temperature from -60 to +70 ° C

- relative humidity of 95-98% at +20 ° C

- mechanical vibration loads

Time life 6000 hours!

Very pleasant SUPER SOUND!!!

Lot for 2 pcs

Payment

1. We accept PayPal only.

2. All major credit cards are accepted through secure payment processor PayPal.

3. Payment must be received within 5 business days of auction closing.

4. If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review. 

NOTE:

Import duties, taxes and chargers 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.

Shipping

1. We ship Worldwide.

2. Items will be usually shipped within 2 business days on payment received.

3. We use UkrPoshta (Ukranian Post) for our International  deliveries. Once your package passes through customs it will be delivered by your local post office.

4. The usual time for a parcel to arrive at its address is 24 business  days, but usually it arrives much earlier. Sometimes it can take longer up to 8 weeks.

5. We can send to USA by UPS (3-4 business days delivery) $29 - 1.1lbs, $34 - 2.2lbs, $39 - 3.3lbs, $44 - 4.4lbs, $54 - 6.6lbs 


Delivery time lasts approx.

1) United States 12-24 business days.

2) Europe: up to 21-24 (except Germany and Italy, delivery time can take up to 1 month)

3) Other countries: not more than 30 business days.

4) Canada & Asia & Australia: the delivery can take up to 2 months, but  usually it arrives much earlier.

 

We appreciate your patience if you haven't received items in 30  days may need more patience by reason of the local delivery system  and/or customs. If you are concerned in any way, please feel free to  contact us via ebay message instead of leaving negative/neutral  feedback or opening a dispute. We will make every effort to fix any problem.

 

Returns

We guarantee you complete satisfaction with all our high quality products.
If you receive an item you did not order, or if an item you ordered is received damaged or defective, we will refund you the price you paid for it or replace it with identical one.

The item should come to the above address within 30 days after you received it. 
After 30 days we will no longer be responsible and the item won't be taken back.
Item for returning must have the original tags and packing, otherwise it won't be accepted.