4313C STC England / 313C / CV75 / G150-1A PTT3003  Thyratron Cathode Tube 

The 4313C is a cold cathode thyratron based on the 313C ITT (USA) design. STC being a subsidiary of the ITT and generally differentiating its Type designations from ITT by the addition of the 4 as a prefix.
The UK Government procurement specification was the CV75.

Sensibly equivalent to:
313C 3313C CV75 G150/1A PTT3003

The electrodes with the trigger being seen as a diagonal wire.
The wide glass tube envelope is 28 mm in diameter, and excluding the UX4 base pins is 70 mm tall.
References: Data-sheet & 1040. Type 4313C was first introduced in 1945. See also 1945 adverts.
 

Pin Connections
B4
1
2
3
4

g1
a
nc
g1

Photo for example

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NOTE:

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Shipping

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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.