10x New 1J29B-V 1Ж29Б-В Miniature HF Pentode Tubes With Flexible Leads NOS OTK

Miniature Soviet HF pentodes: 10 new tubes per batch with excellent condition and OTK

New soviet 1J29B-V miniature HF pentodes.

Ten tubes in one lot.

Excellent condition, OTK markings.

High durability.

We ship via International Airmail.

Tracking number is provided.

High-frequency ultra-miniature pentode with short anode-grid characteristics, increased reliability and mechanical strength.

Designed for generating and amplifying high-frequency voltages up to 60 MHz.

The 1Zh29B-V high-frequency pentode is used in general-purpose and special-purpose radio-electronic equipment.

Operates in any position.

Available in a miniature glass design.

Wire lead base with 8 leads.

Direct-heated oxide cathode.

Dimensions of the 1Zh29B-V pentode:

— tube height — 40 mm;

— tube diameter — 8.5 mm;

— anode lead length — 25 mm;

— lead length — not less than 40 mm;

— lead diameter — 0.4 mm.

Weight not more than 4.5 g.

Service life not less than 2000 hours.

Technical conditions: 3.300.004TU.

Decoding of the high-frequency pentode marking:

1Ж29Б-В

1 — number indicating the rounded value of the lamp filament voltage in volts;

Ж — letter defining the lamp type: Ж — high-frequency pentode with short characteristics;

29 — serial number of the development of this type of tube;

Б — letter characterising the design: Б — ultra-miniature, in a glass envelope, with a diameter of 8 to 10.5 mm;

В — tube with increased reliability and mechanical strength.