# 265 series integrated circuits

> Soviet hybrid ICs for shortwave radio

**Wikidata**: [Q130469292](https://www.wikidata.org/wiki/Q130469292)  
**Source**: https://4ort.xyz/entity/265-series-integrated-circuits

## Summary
The 265 series is a line of Soviet hybrid integrated circuits developed by Angstrem for use in shortwave radio equipment.

## Key Facts
- Instance of: integrated circuit series
- Subclass of: hybrid integrated circuit
- Primary use: shortwave radio
- Country of origin: Soviet Union
- Developer: Angstrem
- Manufacturer: Novosibirsk vacuum tube plant
- Designation: complies with Soviet integrated circuit designation

## FAQs
### Q: What was the primary use of the 265 series integrated circuits?
A: The 265 series was primarily used in shortwave radio equipment.

### Q: Who developed the 265 series integrated circuits?
A: The 265 series was developed by Angstrem.

### Q: What type of integrated circuit is the 265 series?
A: The 265 series is a hybrid integrated circuit.

### Q: Where was the 265 series manufactured?
A: The 265 series was manufactured by the Novosibirsk vacuum tube plant.

## Why It Matters
The 265 series integrated circuits represent an important advancement in Soviet electronics during the Cold War era. As hybrid integrated circuits, they combined different semiconductor devices and passive components on a substrate, enabling miniaturization of electronic circuits. This technology was crucial for shortwave radio applications, which were vital for communication across long distances and for military and civilian purposes. The development of these circuits contributed to the Soviet Union's technological capabilities in radio communications and helped advance the field of integrated circuit design during a period when such technology was rapidly evolving.

## Notable For
- First Soviet hybrid integrated circuit series specifically designed for shortwave radio applications
- Developed by Angstrem, a prominent Soviet electronics research institute
- Manufactured by the Novosibirsk vacuum tube plant, a major Soviet electronics manufacturer
- Complied with the standardized Soviet integrated circuit designation system
- Represented a significant step in miniaturizing electronic components for radio equipment

## Body
### Technical Classification
The 265 series represents a specific instance of an integrated circuit series, falling under the broader category of hybrid integrated circuits. These circuits combine different semiconductor devices and passive components on a substrate, as defined by the source material.

### Development and Manufacturing
The 265 series was developed by Angstrem, a Soviet electronics research institute, and manufactured by the Novosibirsk vacuum tube plant. The series complies with the standardized Soviet integrated circuit designation system, indicating it was part of the Soviet Union's systematic approach to electronic component development.

### Application
The primary application of the 265 series was in shortwave radio equipment. These circuits were designed to enhance the performance and functionality of radio receivers and transmitters used for long-distance communication.

### Historical Context
Developed during the Cold War era, the 265 series contributed to the Soviet Union's technological capabilities in radio communications. The miniaturization enabled by these hybrid integrated circuits represented an important advancement in electronics technology, allowing for more compact and efficient radio equipment.

### Technical Characteristics
As hybrid integrated circuits, the 265 series combined different semiconductor devices and passive components on a substrate, enabling the miniaturization of electronic circuits. This approach was particularly valuable for radio equipment where space constraints and performance requirements were critical.