Dear buyers! I present VINTAGE USSR Soviet Russian 6S31B-R Small Tube Miniature Triode 2 pcs.
Military equipment.
Very close equivalent 6N30P-DR.
Condition: new old stock.
Date: I. 1990.
Made in USSR.
6S31B-R
Low-frequency subminiature triode of increased reliability in a glass design with wire leads.
Designed to work in the circuits of the output stages of low-frequency amplifiers.
The 6S31B-R triode is used in radio-electronic equipment for general and special purposes.
Indirectly heated oxide cathode.
Works in any position.
Produced in a glass subminiature design.
Wire output socket with 5 leads.
Overall dimensions of triode 6S31B-R:
— tube height — 39 mm;
- tube diameter - 10.2 mm;
— lead length — not less than 35 mm;
- pin diameter - 0.4 mm.
Weight no more than 4.5 g.
Service life not less than 5000 h.
Deciphering the marking of the triode:
6S31B-R
6 - a number indicating the rounded value of the tube filament voltage in volts;
C - a letter that determines the type of tube: C - triode;
31 - the number of the serial number of the development of this type of tube;
B - a letter characterizing the design: B - subminiature, in a glass shell, with a diameter of 8 to 10.5 mm;
R is a letter characterizing the increased reliability of the tube.
I accept PAYPAL
I send parcels within 24 hours.
Delivery time to Europe makes 8-10 days,
USA and South America 12-15 days,
Japan and Asia countrys 8-10 days.
Thanks for attention and good purchases
You can write at any time and I will answer all your questions.